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{{Infobox |title = Tetris The Grand Master
{{Infobox |title = Tetris The Grand Master
|developer = Arika
|developer = [[Arika]]
|publisher = Capcom
|publisher = Capcom, HAMSTER Co.
|released = 1998
|released = '''Arcade'''{{release|JP|August, 1998}}'''PlayStation 4''', '''Nintendo Switch'''{{release|WW|December 1, 2022}}
|platform = Arcade
|platform = Arcade, PlayStation 4, Nintendo Switch
|sequel = ''[[Tetris The Absolute The Grand Master 2]]''
|title-scrn = Arika_tgm1_title.jpg
|title-scrn = Arika_tgm1_title.jpg
|ingame-scrn = Arika_tgm1_ingame.jpg
|ingame-scrn = Arika_tgm1_ingame.jpg
|preview = 1
|preview = 1
|playfield=10x20
|playfield=10 × 20
|boxart = TGM flyer.jpg
|caption = Arcade flyer for ''Tetris The Grand Master''
|hold = No
|hold = No
|hard = No
|hard = No
|SRS = [[TGM rotation]]
|system = [[Arika Rotation System|ARS]]
}}
}}
'''''Tetris: The Grand Master''''' is the first arcade game in [[Arika]]'s [[TGM series]].
{{nihongo foot|'''''Tetris The Grand Master'''''|テトリス・ザ・グランドマスター|''Tetorisu Za Gurando Masutā''||lead=yes|group=lower-alpha}} is the first game of the [[TGM series|''TGM'' series]]. It was released in August, 1998 for arcades in Japan. On December 1, 2022 a console version was released for PlayStation 4 and Nintendo Switch as an Arcade Archives title.<ref>{{cite web
|url=https://www.videogameschronicle.com/news/the-hardest-tetris-game-is-officially-coming-to-consoles-for-the-first-time/
|title=The hardest Tetris game is officially coming to consoles for the first time
|date=2022-11-22
|website=VGC
|access-date=2022-11-23
|archive-url=https://web.archive.org/web/20221122112413/https://www.videogameschronicle.com/news/the-hardest-tetris-game-is-officially-coming-to-consoles-for-the-first-time/
|archive-date=2022-11-22
}}</ref><ref>{{cite web
|url=https://www.famitsu.com/news/202211/22283693.html
|title=“Akeaka” 300-shū renzoku haishin tassei o kinen shite “akeaka gyarakushian” o 11 tsuki 24-nichi,“akeaka tetorisu za gurandomasutā” o 12 tsuki 1-nichi ni haishin!
|trans-title=In commemoration of the achievement of 300 consecutive weeks of "Ake Aca" distribution, "Ake Aca Galaxian" will be distributed on November 24th, and "Ake Aca Tetris The Grandmaster" will be distributed on December 1st!
|script-title=“アケアカ”300週連続配信達成を記念して『アケアカ ギャラクシアン』を11月24日、『アケアカ テトリス ザ・グランドマスター』を12月1日に配信!
|date=2022-11-22
|website=Famitsu
|access-date=2022-11-22
|archive-url=https://web.archive.org/web/20221122080110/https://www.famitsu.com/news/202211/22283693.html
|archive-date=2022-11-22
}}</ref>
 
Players place pieces and clear lines as the game goes on, increasing their grade along the way. At later levels, the game will force them to keep up with the high speeds using special techniques; in addition to the Initial Rotation System introduced in the game. The game is known for being one of Arika's popular games to this day, and later instalments would introduce modes with their own gameplay and objective.
 
== Gameplay ==
== Gameplay ==
TODO: I think we should possibly include one of those anatomy screenshot dealies that points everything out (score, grade, time, and level). Sort of like in the IRS patent. Maybe with a caption that says "beginners should care most about level, while advanced players care only about their time". Or something.


Unlike typical tetris games where the goal is indefinite survival and a high score, TGM is a challenge where you have a finite opportunity to attain a high Grade. With the exception of the final grade of Grand Master, grade is derived from your score. This indirectly makes the grading system strongly favour survival, with a special emphasis on clearing non-singles late in the game during 20g.
''TGM<nowiki>'</nowiki>s'' gameplay is heavily inspired by it's arcade predecessor, Sega's [[Tetris (Sega)|''Tetris'']] released 10 years earlier. It uses a [[Arika Rotation System|modified rotation system]], color scheme, and relies heavily on mechanics such as [[lock delay]]. Another game which inspired ''TGM'' is ''[[TETRIS SEMIPRO-68k]]'', a fan game which was the first to introduce 20G gravity.


With only a small number of grades, there are often ties. The highscore table ranks a tied grade higher if it was attained faster. In practice, solid play will award players the highest rank of Grand Master. As such, for adequately skilled players the game becomes a time attack to level 999.
The main goal in ''TGM'' is to score points, awarding the player a higher grade. The game ends when a player reaches level 999. If the player scored enough points, they will be awarded with the grade S9. To achieve the grade GM, the player must also meet some time requirements during play. If the player [[top out|tops out]] before reaching level 999, the game ends, awarding the player the current grade and it's "mastering time", the time at which the grade was awarded during gameplay.


== Speed ==
===Level===
[[ARE]] is fixed at 30 frames.
Level has a unique implementation in ''TGM''. The level counter will increase by 1 for every piece that enters the playfield. It will also increase by 1 for each line cleared.


[[DAS]] is fixed at 15 frames.
When the player is about to increment the hundreds digit (e.g., level 399), only line clears will increase the level. Level 998 is treated similarly, with a final line clear required to reach 999 and finish.


Lock time is fixed at (somebody look this up).
===IRS===
{{main|IRS}}
Abbreviation for Initial Rotation System.


Line Clear time is fixed at (somebody look this up).
Normally a piece will appear in the rotation showed in the [[piece preview]]. With IRS, holding either the left or right rotation button will cause the piece to appear rotated 90 degrees. This allows the player a higher degree of freedom when placing pieces at higher game speeds.


[[drop|Gravity]] is dependent on the level, and it ranges as follows:
===TLS===
{| border="1"
{{main|ghost piece}}
! Level || Speed
Abbreviation for Temporary Landing System
|-
This system is a semi-transparent representation of where the piece will land if allowed to drop into the playfield. It is displayed up to level 100.
|  0 to 199 || 1/64G to 1/1.8G
|-
| 200 to 299 || 1/64G to 1G
|-
| 300 to 399 || 2G to 4G
|-
| 400 to 499 || 5G to 3G
|-
| 500 to 999 || 20G
|}


The player can force constant 20G, by pressing ↓↓↓↓ ↓↓↓↓ C B A before starting the game, though this will exclude their play from the highscore list. Unlike [[TGM2]], the lockdown time, line clear time, ARE and DAS time do not change throughout the game.
===Buffer zone===
Above the playfield, the game uses a single-row [[Playfield#Buffer_zone|buffer zone]], effectively extending the height of the playfield from 20 to 21. Row 21 allows blocks that lock in it to reappear once the stack is lowered. Any row above it, however, is not part of the buffer zone, meaning that blocks that lock in such rows get deleted and will not reappear once the stack is lowered.


== Scoring ==
== Scoring ==
TGM shares the same scoring gimmicks of many other Tetris games, though they are not quite implemented the same way:
''The Grand Master'' shares the same scoring mechanisms of many other Tetris games:
:*You receive more points for clearing more lines at once.
* The player receive more points for clearing more lines at once.
:*Lines are worth more with each passing level. (The nature of "level" in TGM, however, means the amount of points a line is worth is constantly changing.)
* Lines are worth more with each passing level.
:*You receive points for forcing a piece down. (Though only when this results in cleared lines!)
* The player receive points for forcing a piece down. (Although only when this results in cleared lines, unlike in some other games.)
* The player receive a [[combo]] bonus for clearing lines with consecutive pieces.
* The player receive a bravo bonus for clearing the entire playfield.


There are a few scoring gimmicks unique to TGM:
===Scoring formula===
:*You receive a combo bonus for clearing lines with consecutive pieces.
: <math>\text {Combo} = \text {Previous Combo Value} + (2 \times \text {Lines}) - 2</math>
:*You receive a bravo bonus for clearing the entire screen.
: <math>\text {Score} = (\left \lceil (\text {Level} + \text {Lines})/4 \right \rceil + \text {Soft}) \times \text {Lines} \times \text {Combo} \times \text {Bravo}</math>
 
Incidentally, for all players good enough to attain the rank of S9 score becomes irrelevant and the focus changes to a time attack rather than a score attack. Nevertheless, here is a more technical description of the scoring formula:
 
Score = ((Level + Lines)/4 + Drop) x Lines x Combo x Bravo


Where:
Where:
*Level is the current level you are on.
*Level is the current level the player is on (before the lines are cleared).
*Lines is the number of lines you just cleared.
*Lines is the number of lines the player just cleared.
*(Level + Lines)/4 is rounded up.
*<math>\left \lceil (\text {Level} + \text {Lines})/4 \right \rceil</math> is rounded up.
*Drop is the number of spaces you manually dropped the piece. The last space your piece falls does not contribute to this, however locking the piece once it has landed will add 1 to the Drop.
*Soft is the cumulative number of frames during which Down was held during the piece's active time. Manually locking pieces already on the ground will increase Soft by 1.
*Combo returns to 1 by default every time a piece does not clear lines. Otherwise, it is :
*Locking a piece without clearing lines resets Combo to 1. Otherwise, the game updates Combo as follows, ''before'' calculating Score:
*:Combo = Combo - 1 + (2 x Lines - 1)
*:E.g., a double-triple-single combo will have combo values 3, 7, and 7 respectively.
*Bravo is equal to 4 if this piece has cleared the screen, and otherwise is 1.
*Bravo is equal to 4 if this piece has cleared the screen, and otherwise is 1.


== Grades ==
== Grading ==
In TGM1 grade is entirely determined by score. As you pass certain milestones, TGM will assign you the next grade:
In ''TGM'' grade is entirely determined by score. As the player passes certain milestones, the game will assign the player the next grade.
{| border="1"
{| border="2" cellpadding="2" cellspacing="0" style="margin-top:1em; margin-bottom:1em; background:#f9f9f9; border:3px #999999 solid; border-collapse:collapse;"
! Grade || Required Score || Grade || Required Score
|+'''Grade Conditions'''
! bgcolor="#66BB55"|Grade || bgcolor="#BBBBBB"|Required Score || bgcolor="#66BB55"|Grade || bgcolor="#BBBBBB"|Required Score
|- align="center"
|- align="center"
| 9 ||      0 || S1 ||  16,000
| bgcolor="#D7ECC6"| 9 ||      0 || bgcolor="#D7ECC6"| S1 ||  16,000
|- align="center"
|- align="center"
| 8 ||    400 || S2 ||  22,000
| bgcolor="#D7ECC6"| 8 ||    400 || bgcolor="#D7ECC6"| S2 ||  22,000
|- align="center"
|- align="center"
| 7 ||    800 || S3 ||  30,000
| bgcolor="#D7ECC6"| 7 ||    800 || bgcolor="#D7ECC6"| S3 ||  30,000
|- align="center"
|- align="center"
| 6 ||  1,400 || S4 ||  40,000
| bgcolor="#D7ECC6"| 6 ||  1,400 || bgcolor="#D7ECC6"| S4 ||  40,000
|- align="center"
|- align="center"
| 5 ||  2,000 || S5 ||  52,000
| bgcolor="#D7ECC6"| 5 ||  2,000 || bgcolor="#D7ECC6"| S5 ||  52,000
|- align="center"
|- align="center"
| 4 ||  3,500 || S6 ||  66,000
| bgcolor="#D7ECC6"| 4 ||  3,500 || bgcolor="#D7ECC6"| S6 ||  66,000
|- align="center"
|- align="center"
| 3 ||  5,500 || S7 ||  82,000
| bgcolor="#D7ECC6"| 3 ||  5,500 || bgcolor="#D7ECC6"| S7 ||  82,000
|- align="center"
|- align="center"
| 2 ||  8,000 || S8 || 100,000
| bgcolor="#D7ECC6"| 2 ||  8,000 || bgcolor="#D7ECC6"| S8 || 100,000
|- align="center"
|- align="center"
| 1 || 12,000 || S9 || 120,000
| bgcolor="#D7ECC6"| 1 || 12,000 || bgcolor="#D7ECC6"| S9 || 120,000
|}
{| border="2" cellpadding="2" cellspacing="0" style="margin-top:1em; margin-bottom:1em; background:#f9f9f9; border:3px #999999 solid; border-collapse:collapse;"
|+'''GM Grade Conditions'''
|-
! bgcolor="#80A3F8"|Level || colspan="1" colspan="1" bgcolor="#BBBBBB"|Required Score || colspan="1" bgcolor="#66BB55"|Time
|- align="center"
|- align="center"
|   ||       || GM || 126,000<sup>*</sup>
| bgcolor="#C4E8E8"| 300 || 12,000 (Grade 1)|| bgcolor="#D7ECC6"| =<04:15:00
|- align="center"
| bgcolor="#C4E8E8"| 500 || 40,000 (Grade S4)|| bgcolor="#D7ECC6"| =<07:30:00
|- align="center"
| bgcolor="#C4E8E8"| 999 || 126,000 <br/>(slightly higher than S9) || bgcolor="#D7ECC6"| =<13:30:00
|}
|}


<sup>*</sup>In addition to this, to achieve Grand Master rank the player must reach grade 1 before level 300, grade S4 before level 500, grade S9 before level 999, and level 999 at or before 13:30:00.
===Secret grade===
{{main|Secret Grade Techniques}}
Secret grade is a hidden grading system that recognizes a ">" pattern in the [[playfield]] by leaving holes. The first hole becomes Secret grade 9, and each subsequent hole increasing the grade until row 19, the GM grade. The player must top out to have the Secret grade awarded. A minimum grade of 5 is needed to see the message.
 
 
==Vs. Mode==
If the arcade operator has enabled Vs. mode, two players can start a Vs. game. One player must first start a game, and during any point of that game the second player may press start to challenge them, and begin a game.
 
When the player clears 2 or more lines at once, those lines will be sent to their opponent's playfield as [[garbage]] lines. If the match does not end within 5 minutes, the game ends in a draw.
 
===Item blocks===
Item blocks can be used to attack or defend from the player's opponent. The player gets a random item with every 20 blocks placed, regardless of line clears.
 
Clearing lines will fill up the item meter adjacent to a player's playfield. When the meter is full an item block is dealt to the player. They may use it by clearing a line which the piece is part of.
 
It is possible to cancel active item blocks by activating an attack item before the opponent's block is placed. Note that purely visual attacks, such as X-Ray, Press Field and Spin Field, do not destroy enemy blocks.
 
There are 18 different item blocks.
 
{| class="wikitable"
|+
! style="background-color: #ffd3ac;" colspan="2" | Attack items
|-
|DEATH BLOCK
|Makes the opponent's next block big.
|-
|NEGA FIELD
|Flip the playfield's occupied cells to empty, and empty cells to occupied.
|-
|SPIN FIELD
|Rotate the opponent's field for a short time.
|-
|180° FIELD
|Rotate the playfield upside down and move the newly rotated cells down.
|-
|SHOT GUN!
|Randomly shoot a group of holes in the opponent's stack.
|-
|HARD BLOCK
|The opponent's next piece must be cleared twice to be removed from the playfield.
|-
|LASER BLOCK
|Remove a column of holes in the opponent's stack. The attacker many move the laser by pressing left and right.
|-
|ROLL ROLL
|The opponent's next 3 pieces are auto rotating by a fixed interval.
|-
|TRANS FORM
|The opponent's next 3 pieces will change [[tetromino]] every time the piece is rotated.
|-
|X-RAY
|A partially invisible effect is applied to the opponent's stack for a short period.
|-
|PRESS FIELD
|Shrinks the opponent's playfield for a short period.
|-
! style="background-color: #c4e8e8;" colspan="2" | Defense items
|-
|↑ DEL FIELD
|Deletes the upper half of the player's playfield.
|-
|↓ DEL FIELD
|Deletes the lower half of the player's playfield.
|-
|→ MOV FIELD
|Push every cell in the player's playfield to the right.
|-
|← MOV FIELD
|Push every cell in the player's playfield to the left.
|-
|DEL EVEN
|Deletes every 2nd row in the player's playfield.
|-
! style="background-color: #d7ecc6;" colspan="2" | Special items
|-
|FREE FALL
|Forces all cells to move down in the player's playfield removing any holes.
|-
|EXCHG FIELD
|Swaps the player's and opponent's playfield.
|-
|}
 
==Hidden modes==
All codes must be entered at the title screen. Codes may be combined (i.e. Big 20G mode + Reverse Monochrome mode.) Scores achieved using codes will not be stored on the high score table.
 
Key: L = Left, D = Down, U = Up, R = Right
 
{|
|
{|
|[[Image:TGM_20G_mode.gif|thumb|100px|none|20G mode]]
|'''20G Mode'''
Immediately enables maximum gravity (20G).<br>
Input code: <code>DDDDDDDDCBA</code>
|}
|
{|
|[[Image:TGM_big_mode.gif|thumb|100px|none|Big mode]]
|'''Big Mode'''
Tetrominoes are twice normal size, simulating play in a 5x10 playfield<br>
Input code: <code>LLLLDCBA</code>
|}
|-
|
{|
|[[Image:TGM_rev_mode.gif|thumb|100px|none|Rev mode]]
|'''Rev Mode'''
Play in reverse! Pieces will spawn at the bottom of the playfield and "fall" upwards<br>
Input code: <code>DUUDCBA</code>
|}
|
{|
|[[Image:TGM_mono_mode.gif|thumb|100px|none|Mono mode]]
|'''Mono Mode'''
All tetrominoes are monochrome<br>
Input code: <code>RRRUCBA</code>
|}
|-
|
{|
|[[Image:TGM_TLS_mode.gif|thumb|100px|none|TLS mode]]
|'''TLS Mode'''
Shows the "Temporary Landing System" aka "ghost piece" for the entirety of the game, not just 0-100<br>
Input code: <code>ABCCBAACB</code>
|}
|
{|
|[[Image:TGM_uki_mode.gif|thumb|150px|none|Uki mode]]
|'''Uki Mode'''
Instead of line clear sound effect when clearing multiple lines, a child's voice will say "Uki" repeatedly, the japanese word for the sound a monkey makes. The child will say "Waaahhh!" instead if the player scores a Tetris.<br>
Input code: <code>ABABABABABABABABB</code>
|}
|}
 
=== Other modes ===
 
*'''No item VS''' (Play VS mode without item blocks): <br>Hold both player Start buttons together before the match begins.
 
== Speed timings==
[[drop|Gravity]] does not increase uniformly, unlike many other tetris games. It rises and falls, depending on the level as shown in the table below.
 
The unit for [[gravity]] is [[Glossary#G|G]] (rows per frame), as a [http://en.wikipedia.org/wiki/Fixed-point_arithmetic fraction with a constant denominator] of 256. This means '''G = Internal Gravity/256'''. For example, at levels 90 through 99, the gravity is 64/256G, or 1/4G.
 
{| border="2" cellpadding="2" cellspacing="0" style="margin-top:1em; margin-bottom:1em; background:#f9f9f9; border:3px #999999 solid; border-collapse:collapse;"
|+'''Internal Gravity'''
!bgcolor="#80A3F8"|Level||bgcolor="#BBBBBB"|Internal Gravity<br>(1/256 G)||bgcolor="#80A3F8"|Level||bgcolor="#BBBBBB"|Internal Gravity<br>(1/256 G)
|-align = center
|bgcolor="#C4E8E8"|0||4||bgcolor="#C4E8E8"|220|||32
|-align = center
|bgcolor="#C4E8E8"|30||6||bgcolor="#C4E8E8"|230||64
|-align = center
|bgcolor="#C4E8E8"|35||8||bgcolor="#C4E8E8"|233||96
|-align = center
|bgcolor="#C4E8E8"|40||10||bgcolor="#C4E8E8"|236||128
|-align = center
|bgcolor="#C4E8E8"|50||12||bgcolor="#C4E8E8"|239||160
|-align = center
|bgcolor="#C4E8E8"|60||16||bgcolor="#C4E8E8"|243||192
|-align = center
|bgcolor="#C4E8E8"|70||32||bgcolor="#C4E8E8"|247||224
|-align = center
|bgcolor="#C4E8E8"|80||48||bgcolor="#C4E8E8"|251||256 (1G)
|-align = center
|bgcolor="#C4E8E8"|90||64||bgcolor="#C4E8E8"|300||512 (2G)
|-align = center
|bgcolor="#C4E8E8"|100||80||bgcolor="#C4E8E8"|330||768 (3G)
|-align = center
|bgcolor="#C4E8E8"|120||96||bgcolor="#C4E8E8"|360||1024 (4G)
|-align = center
|bgcolor="#C4E8E8"|140||112||bgcolor="#C4E8E8"|400||1280 (5G)
|-align = center
|bgcolor="#C4E8E8"|160||128||bgcolor="#C4E8E8"|420||1024 (4G)
|-align = center
|bgcolor="#C4E8E8"|170||144||bgcolor="#C4E8E8"|450||768 (3G)
|-align = center
|bgcolor="#C4E8E8"|200||4||bgcolor="#C4E8E8"|500||5120 (20G)
|}
 
Unlike ''[[TGM2]]'', the [[Line_clear#delay|line clear delay]], [[lock delay]], [[ARE]] and [[DAS]] do not change throughout the game. The following are the timing values adjusted to what a player would observe, including inclusive DAS counting.
{| border="2" cellpadding="2" cellspacing="0" style="margin-top:1em; margin-bottom:1em; background:#f9f9f9; border:3px #999999 solid; border-collapse:collapse;"
|+'''Delays'''
! bgcolor="#80A3F8"|Level
! bgcolor="#FFA069"|[[ARE]]<br>(frames)
! bgcolor="#FFFF55"|[[DAS]]<br>(frames)
! bgcolor="#CC88FF"|[[Lock delay|Lock]]<br>(frames)
! bgcolor="#66BB55"|[[Line clear]]<br>(frames)
|- align = center
| bgcolor="#C4E8E8"|000 - 999 || bgcolor="#FFD3AC"|30 || bgcolor="#FFFF88"|16 || bgcolor="#CCBBFF"|30 || bgcolor="#D7ECC6"|41
|}
*The player's DAS charge is unmodified during line clear delay, the first 4 frames of ARE, the last frame of ARE, and the frame on which a piece spawns.
 
== Arcade Archives version ==
The Arcade Archives version released for the Nintendo Switch and PS4 features new modes and online leaderboards.
=== Original mode ===
A replica of the original arcade release.
=== Hi score mode ===
A mode where you compete for the highest grade possible in the shortest amount of time. 20G mode can be enabled.
=== Caravan mode ===
A mode where you attempt to get the highest score in 5 minutes. Big Block mode can be enabled.
 
== Emulation ==
 
The tables below provide verified lists of archives and files to make sure that Tetris the Grand Master can be emulated properly. There aren't any guides, at this point, for dumping these required files from a PCB; but these files can be searched out on the Internet.
 
{| border="2" cellpadding="2" cellspacing="0" style="margin-top:1em; margin-bottom:1em; background:#f9f9f9; border:3px #999999 solid; border-collapse:collapse;"
|+'''Downloadable Archives'''
!bgcolor="#80A3F8"|Archive||bgcolor="#BBBBBB"|MD5 Hash
|-align = center
|bgcolor="#C4E8E8"|tgmj.zip||7fcc8a72b4bc1f3340e1db4724b0628d
|-align = center
|bgcolor="#C4E8E8"|coh3002c.zip||4f97958fe67444637b5c6700fb62849c
|-align = center
|bgcolor="#C4E8E8"|cpzn2.zip||99304c05983b337217ab4b56400a14ac
|-align = center
|bgcolor="#C4E8E8"|qsound_hle.zip||758388893761ea3ff0d820f60344a38e
|}
 
{| border="2" cellpadding="2" cellspacing="0" style="margin-top:1em; margin-bottom:1em; background:#f9f9f9; border:3px #999999 solid; border-collapse:collapse;"
|+'''Required BIOS Files'''
!bgcolor="#80A3F8"|File||bgcolor="#BBBBBB"|MD5 Hash
|-align = center
|bgcolor="#C4E8E8"|cp10.ic652||26574f621b61ea09eef08e8a7eba5a65
|-align = center
|bgcolor="#C4E8E8"|m534002c-59.ic353||1254b215f64aee1f83895e0213a9ac82
|-align = center
|bgcolor="#C4E8E8"|coh-3002c.353||1254b215f64aee1f83895e0213a9ac82
|-align = center
|bgcolor="#C4E8E8"|dl-1425.bin||108b113a596e800a02fece73f784eeb0
|}
 
{| border="2" cellpadding="2" cellspacing="0" style="margin-top:1em; margin-bottom:1em; background:#f9f9f9; border:3px #999999 solid; border-collapse:collapse;"
|+'''Required TGM Files'''
!bgcolor="#80A3F8"|File||bgcolor="#BBBBBB"|MD5 Hash
|-align = center
|bgcolor="#C4E8E8"|ate_02.2e||591fe13727496e4037e53cc834e24ccd
|-align = center
|bgcolor="#C4E8E8"|ate-01m.3a||b832063bef8d81ff6a318f39da6f4c74
|-align = center
|bgcolor="#C4E8E8"|ate-05m.3h||99740df1cf1201a4efe5d5b2c4806425
|-align = center
|bgcolor="#C4E8E8"|ate-06m.4h||2188d3a9be4769a21e44d33cbfbd2024
|-align = center
|bgcolor="#C4E8E8"|atej_04.2h||14e13f937163b6db734d3220a017bfc0
|-align = center
|bgcolor="#C4E8E8"|cp11||439f9c44559f2f4761d433dd4b96866d
|}
 
The current version of [https://www.mamedev.org/ MAME] is capable of running Tetris the Grand Master. MAME can either be run as a standalone program on Windows or the Macintosh, or as a core through other Emulator frontends such as RetroArch or OpenEmu (Experimental). It is recommended that all of the BIOS files from the above archives are added into the "tgmj.zip" archive before importing the game into an emulator. If the tgmj.zip archive is imported without the BIOS files inside, the emulator will report numerous file requirement errors, or it will simply not start.
 
== Physical scans ==
{{Scanbox
|console = Capcom Sony ZN-2
|region = JP
|pcb = Tetris_The_Grand_Master_arcade_PCB.jpg
|dimensions = 244&times;245&times;50 mm
}}
 
== Notes ==
{{notelist}}
 
== References ==
<references />
 
==External links==
* [https://tcrf.net/Tetris:_The_Grand_Master ''Tetris: The Grand Master'' on The Cutting Room Floor]
 
{{Arika games}}
 
[[Category:Official Tetris games]]
[[Category:Arcade games]]
[[Category:Nintendo Switch games]]
[[Category:PlayStation 4 games]]

Latest revision as of 04:33, 2 June 2023

Tetris The Grand Master
TGM flyer.jpg
Arcade flyer for Tetris The Grand Master
Developer(s)Arika
Publisher(s)Capcom, HAMSTER Co.
Platform(s)Arcade, PlayStation 4, Nintendo Switch
ReleaseArcade
  • JP: August, 1998
PlayStation 4, Nintendo Switch
  • WW: December 1, 2022
SequelTetris The Absolute The Grand Master 2
Gameplay info
Next pieces1
Playfield size10 × 20
Hold pieceNo
Hard dropNo
Rotation systemARS
Arika tgm1 title.jpg
Arika tgm1 ingame.jpg

Tetris The Grand Master[a] is the first game of the TGM series. It was released in August, 1998 for arcades in Japan. On December 1, 2022 a console version was released for PlayStation 4 and Nintendo Switch as an Arcade Archives title.[1][2]

Players place pieces and clear lines as the game goes on, increasing their grade along the way. At later levels, the game will force them to keep up with the high speeds using special techniques; in addition to the Initial Rotation System introduced in the game. The game is known for being one of Arika's popular games to this day, and later instalments would introduce modes with their own gameplay and objective.

Gameplay

TGM's gameplay is heavily inspired by it's arcade predecessor, Sega's Tetris released 10 years earlier. It uses a modified rotation system, color scheme, and relies heavily on mechanics such as lock delay. Another game which inspired TGM is TETRIS SEMIPRO-68k, a fan game which was the first to introduce 20G gravity.

The main goal in TGM is to score points, awarding the player a higher grade. The game ends when a player reaches level 999. If the player scored enough points, they will be awarded with the grade S9. To achieve the grade GM, the player must also meet some time requirements during play. If the player tops out before reaching level 999, the game ends, awarding the player the current grade and it's "mastering time", the time at which the grade was awarded during gameplay.

Level

Level has a unique implementation in TGM. The level counter will increase by 1 for every piece that enters the playfield. It will also increase by 1 for each line cleared.

When the player is about to increment the hundreds digit (e.g., level 399), only line clears will increase the level. Level 998 is treated similarly, with a final line clear required to reach 999 and finish.

IRS

Main article: IRS

Abbreviation for Initial Rotation System.

Normally a piece will appear in the rotation showed in the piece preview. With IRS, holding either the left or right rotation button will cause the piece to appear rotated 90 degrees. This allows the player a higher degree of freedom when placing pieces at higher game speeds.

TLS

Main article: ghost piece

Abbreviation for Temporary Landing System This system is a semi-transparent representation of where the piece will land if allowed to drop into the playfield. It is displayed up to level 100.

Buffer zone

Above the playfield, the game uses a single-row buffer zone, effectively extending the height of the playfield from 20 to 21. Row 21 allows blocks that lock in it to reappear once the stack is lowered. Any row above it, however, is not part of the buffer zone, meaning that blocks that lock in such rows get deleted and will not reappear once the stack is lowered.

Scoring

The Grand Master shares the same scoring mechanisms of many other Tetris games:

  • The player receive more points for clearing more lines at once.
  • Lines are worth more with each passing level.
  • The player receive points for forcing a piece down. (Although only when this results in cleared lines, unlike in some other games.)
  • The player receive a combo bonus for clearing lines with consecutive pieces.
  • The player receive a bravo bonus for clearing the entire playfield.

Scoring formula

Where:

  • Level is the current level the player is on (before the lines are cleared).
  • Lines is the number of lines the player just cleared.
  • is rounded up.
  • Soft is the cumulative number of frames during which Down was held during the piece's active time. Manually locking pieces already on the ground will increase Soft by 1.
  • Locking a piece without clearing lines resets Combo to 1. Otherwise, the game updates Combo as follows, before calculating Score:
    E.g., a double-triple-single combo will have combo values 3, 7, and 7 respectively.
  • Bravo is equal to 4 if this piece has cleared the screen, and otherwise is 1.

Grading

In TGM grade is entirely determined by score. As the player passes certain milestones, the game will assign the player the next grade.

Grade Conditions
Grade Required Score Grade Required Score
9 0 S1 16,000
8 400 S2 22,000
7 800 S3 30,000
6 1,400 S4 40,000
5 2,000 S5 52,000
4 3,500 S6 66,000
3 5,500 S7 82,000
2 8,000 S8 100,000
1 12,000 S9 120,000
GM Grade Conditions
Level Required Score Time
300 12,000 (Grade 1) =<04:15:00
500 40,000 (Grade S4) =<07:30:00
999 126,000
(slightly higher than S9)
=<13:30:00

Secret grade

Main article: Secret Grade Techniques

Secret grade is a hidden grading system that recognizes a ">" pattern in the playfield by leaving holes. The first hole becomes Secret grade 9, and each subsequent hole increasing the grade until row 19, the GM grade. The player must top out to have the Secret grade awarded. A minimum grade of 5 is needed to see the message.


Vs. Mode

If the arcade operator has enabled Vs. mode, two players can start a Vs. game. One player must first start a game, and during any point of that game the second player may press start to challenge them, and begin a game.

When the player clears 2 or more lines at once, those lines will be sent to their opponent's playfield as garbage lines. If the match does not end within 5 minutes, the game ends in a draw.

Item blocks

Item blocks can be used to attack or defend from the player's opponent. The player gets a random item with every 20 blocks placed, regardless of line clears.

Clearing lines will fill up the item meter adjacent to a player's playfield. When the meter is full an item block is dealt to the player. They may use it by clearing a line which the piece is part of.

It is possible to cancel active item blocks by activating an attack item before the opponent's block is placed. Note that purely visual attacks, such as X-Ray, Press Field and Spin Field, do not destroy enemy blocks.

There are 18 different item blocks.

Attack items
DEATH BLOCK Makes the opponent's next block big.
NEGA FIELD Flip the playfield's occupied cells to empty, and empty cells to occupied.
SPIN FIELD Rotate the opponent's field for a short time.
180° FIELD Rotate the playfield upside down and move the newly rotated cells down.
SHOT GUN! Randomly shoot a group of holes in the opponent's stack.
HARD BLOCK The opponent's next piece must be cleared twice to be removed from the playfield.
LASER BLOCK Remove a column of holes in the opponent's stack. The attacker many move the laser by pressing left and right.
ROLL ROLL The opponent's next 3 pieces are auto rotating by a fixed interval.
TRANS FORM The opponent's next 3 pieces will change tetromino every time the piece is rotated.
X-RAY A partially invisible effect is applied to the opponent's stack for a short period.
PRESS FIELD Shrinks the opponent's playfield for a short period.
Defense items
↑ DEL FIELD Deletes the upper half of the player's playfield.
↓ DEL FIELD Deletes the lower half of the player's playfield.
→ MOV FIELD Push every cell in the player's playfield to the right.
← MOV FIELD Push every cell in the player's playfield to the left.
DEL EVEN Deletes every 2nd row in the player's playfield.
Special items
FREE FALL Forces all cells to move down in the player's playfield removing any holes.
EXCHG FIELD Swaps the player's and opponent's playfield.

Hidden modes

All codes must be entered at the title screen. Codes may be combined (i.e. Big 20G mode + Reverse Monochrome mode.) Scores achieved using codes will not be stored on the high score table.

Key: L = Left, D = Down, U = Up, R = Right

20G mode
20G Mode

Immediately enables maximum gravity (20G).
Input code: DDDDDDDDCBA

Big mode
Big Mode

Tetrominoes are twice normal size, simulating play in a 5x10 playfield
Input code: LLLLDCBA

Rev mode
Rev Mode

Play in reverse! Pieces will spawn at the bottom of the playfield and "fall" upwards
Input code: DUUDCBA

Mono mode
Mono Mode

All tetrominoes are monochrome
Input code: RRRUCBA

TLS mode
TLS Mode

Shows the "Temporary Landing System" aka "ghost piece" for the entirety of the game, not just 0-100
Input code: ABCCBAACB

Uki mode
Uki Mode

Instead of line clear sound effect when clearing multiple lines, a child's voice will say "Uki" repeatedly, the japanese word for the sound a monkey makes. The child will say "Waaahhh!" instead if the player scores a Tetris.
Input code: ABABABABABABABABB

Other modes

  • No item VS (Play VS mode without item blocks):
    Hold both player Start buttons together before the match begins.

Speed timings

Gravity does not increase uniformly, unlike many other tetris games. It rises and falls, depending on the level as shown in the table below.

The unit for gravity is G (rows per frame), as a fraction with a constant denominator of 256. This means G = Internal Gravity/256. For example, at levels 90 through 99, the gravity is 64/256G, or 1/4G.

Internal Gravity
Level Internal Gravity
(1/256 G)
Level Internal Gravity
(1/256 G)
0 4 220 32
30 6 230 64
35 8 233 96
40 10 236 128
50 12 239 160
60 16 243 192
70 32 247 224
80 48 251 256 (1G)
90 64 300 512 (2G)
100 80 330 768 (3G)
120 96 360 1024 (4G)
140 112 400 1280 (5G)
160 128 420 1024 (4G)
170 144 450 768 (3G)
200 4 500 5120 (20G)

Unlike TGM2, the line clear delay, lock delay, ARE and DAS do not change throughout the game. The following are the timing values adjusted to what a player would observe, including inclusive DAS counting.

Delays
Level ARE
(frames)
DAS
(frames)
Lock
(frames)
Line clear
(frames)
000 - 999 30 16 30 41
  • The player's DAS charge is unmodified during line clear delay, the first 4 frames of ARE, the last frame of ARE, and the frame on which a piece spawns.

Arcade Archives version

The Arcade Archives version released for the Nintendo Switch and PS4 features new modes and online leaderboards.

Original mode

A replica of the original arcade release.

Hi score mode

A mode where you compete for the highest grade possible in the shortest amount of time. 20G mode can be enabled.

Caravan mode

A mode where you attempt to get the highest score in 5 minutes. Big Block mode can be enabled.

Emulation

The tables below provide verified lists of archives and files to make sure that Tetris the Grand Master can be emulated properly. There aren't any guides, at this point, for dumping these required files from a PCB; but these files can be searched out on the Internet.

Downloadable Archives
Archive MD5 Hash
tgmj.zip 7fcc8a72b4bc1f3340e1db4724b0628d
coh3002c.zip 4f97958fe67444637b5c6700fb62849c
cpzn2.zip 99304c05983b337217ab4b56400a14ac
qsound_hle.zip 758388893761ea3ff0d820f60344a38e
Required BIOS Files
File MD5 Hash
cp10.ic652 26574f621b61ea09eef08e8a7eba5a65
m534002c-59.ic353 1254b215f64aee1f83895e0213a9ac82
coh-3002c.353 1254b215f64aee1f83895e0213a9ac82
dl-1425.bin 108b113a596e800a02fece73f784eeb0
Required TGM Files
File MD5 Hash
ate_02.2e 591fe13727496e4037e53cc834e24ccd
ate-01m.3a b832063bef8d81ff6a318f39da6f4c74
ate-05m.3h 99740df1cf1201a4efe5d5b2c4806425
ate-06m.4h 2188d3a9be4769a21e44d33cbfbd2024
atej_04.2h 14e13f937163b6db734d3220a017bfc0
cp11 439f9c44559f2f4761d433dd4b96866d

The current version of MAME is capable of running Tetris the Grand Master. MAME can either be run as a standalone program on Windows or the Macintosh, or as a core through other Emulator frontends such as RetroArch or OpenEmu (Experimental). It is recommended that all of the BIOS files from the above archives are added into the "tgmj.zip" archive before importing the game into an emulator. If the tgmj.zip archive is imported without the BIOS files inside, the emulator will report numerous file requirement errors, or it will simply not start.

Physical scans

Capcom Sony ZN-2, JP
Tetris The Grand Master arcade PCB.jpg
PCB, 244×245×50 mm

Notes

  1. Japanese: テトリス・ザ・グランドマスター Hepburn: Tetorisu Za Gurando Masutā

References

  1. "The hardest Tetris game is officially coming to consoles for the first time". VGC. 2022-11-22. Archived from the original on 2022-11-22. Retrieved 2022-11-23.
  2. "“Akeaka” 300-shū renzoku haishin tassei o kinen shite “akeaka gyarakushian” o 11 tsuki 24-nichi,“akeaka tetorisu za gurandomasutā” o 12 tsuki 1-nichi ni haishin!" [In commemoration of the achievement of 300 consecutive weeks of "Ake Aca" distribution, "Ake Aca Galaxian" will be distributed on November 24th, and "Ake Aca Tetris The Grandmaster" will be distributed on December 1st!]. Famitsu. 2022-11-22. Archived from the original on 2022-11-22. Retrieved 2022-11-22.

External links