Difference between revisions of "Tetris The Absolute The Grand Master 2"

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Master mode is [[Arika]]'s evolution of the original ''[[Tetris The Grand Master]]'' gameplay. In ''TGM'' the speed timings remain the same for the entire length of the game. New to ''The Absolute'' is shrinking delays that speed up the game after level 500. The length of the game remains the same, with players trying to complete 999 levels.
 
Master mode is [[Arika]]'s evolution of the original ''[[Tetris The Grand Master]]'' gameplay. In ''TGM'' the speed timings remain the same for the entire length of the game. New to ''The Absolute'' is shrinking delays that speed up the game after level 500. The length of the game remains the same, with players trying to complete 999 levels.
  
An entirely new grading system was devised for ''The Absolute''. Score is no longer taken into account, and instead an internal system called Grade Recognition System (GRS) is used. Instead, speed and skill are taken into account. Additionally, the GM grade requirements have been expanded. Now players must fulfil tetris requirements, faster completion time, and an invisible credit roll challenged called the M-Roll.
+
An new version of GRS (Grade Recognition System) was developed for ''The Absolute''. Score is no longer taken into account, instead speed and skill are taken into account. Additionally, the GM grade requirements have been expanded. Now players must fulfill Tetris line clear requirements, faster completion time, and an invisible credit roll challenged called the M-Roll.
  
 
==== Speed timings ====
 
==== Speed timings ====

Revision as of 14:30, 26 September 2019

Tetris The Absolute The Grand Master 2
TAP flyer.jpg
Arcade flyer for Tetris The Absolute The Grand Master 2 PLUS
Developer(s) Arika
Publisher(s) Psikyo
Release date(s) TGM2
  • JP: October, 2000
PLUS
  • JP: December, 2000
Platform(s) Arcade
Gameplay Info
Next pieces 1
Playfield dimensions 10 × 20
Hold piece No
Hard drop Yes (Sonic Drop)
Rotation system TGM rotation
Arika tap title.jpg Arika tap ingame.jpg

Tetris The Absolute The Grand Master 2[a] (also known as T.A., and TGM2) is Arika's second title in the TGM series. It is an arcade game published by Psikyo in October 2000. The Grand Master 2 introduced the less-intimidating Normal mode to attract more casual gamers, as well as an all-new grading system in Master mode, the continuation of TGM's original gameplay.

Tetris The Absolute The Grand Master 2 PLUS (also known as TAP, and TGM2) is a free upgrade of The Grand Master 2, which adds TGM+, T.A. Death, and Doubles modes. It is very rare to find a The Grand Master 2 arcade PCB that has not been updated to the PLUS version.

Gameplay

Sonic lock, a hard drop that doesn't lock, was added to the base TGM gameplay, which improves low gravity gameplay by allowing Zangi-moves.

Game modes

Normal

Normal mode plays similarly to Master mode in gravity and speed timings, but ends at level 300. At levels 100 and 200 an item block is given to the player. "Free Fall," which eliminates all holes, is given at 100. "Del Even," which clears every other row throughout the field is given at 200. The credit roll challenge is a slow 20g, but playing through it is not required for a "Clear". For this mode, the player's score is multiplied by six.

Speed timings

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 4 149 48
8 5 156 80
19 6 164 112
35 8 174 128
40 10 180 144
50 12 200 16
60 16 212 48
70 32 221 80
80 48 232 112
90 64 244 144
100 4 256 176
108 5 267 192
119 6 277 208
125 8 287 224
131 12 295 240
139 32 300 5120 (20G)
Delays[b][c]
Level ARE
(frames)
DAS
(frames)
Lock
(frames)
Line clear
(frames)
000 - 300 27 16 30 40

Master

Master mode is Arika's evolution of the original Tetris The Grand Master gameplay. In TGM the speed timings remain the same for the entire length of the game. New to The Absolute is shrinking delays that speed up the game after level 500. The length of the game remains the same, with players trying to complete 999 levels.

An new version of GRS (Grade Recognition System) was developed for The Absolute. Score is no longer taken into account, instead speed and skill are taken into account. Additionally, the GM grade requirements have been expanded. Now players must fulfill Tetris line clear requirements, faster completion time, and an invisible credit roll challenged called the M-Roll.

Speed timings

Internal Gravity[1]
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)
Delays[c]
Level ARE
(frames)
Line ARE
(frames)
DAS
(frames)
Lock
(frames)
Line clear
(frames)
000 - 499 27 27 16 30 40
500 - 600 27 27 10 30 25
601 - 700 27 18 10 30 16
701 - 800 18 14 10 30 12
801 - 899 14 8 10 30 6
900 14 8 10 30 6
901 - 999 14 8 8 17 6

Line ARE defines the number of frames of ARE to use after a line clear. The player's DAS charge is unmodified during line clear delay, the first frame of "lock flash" that occurs during the beginning of ARE without a line clear, and one frame of level-increment delay a little before the next piece spawns, and the frame a piece spawns.

Grade Recognition System

Each time lines are cleared, a hidden parameter ("Internal Grade Points") will increase. When this parameter reaches 100 or more, it will reset to zero and another hidden parameter ("Internal Grade") will increment by one. The table below shows the correspondence between "Internal Grade" and the actual grade displayed on the screen. To encourage faster and more efficient play, the "Internal Grade Points" will continually drain away, potentially back to zero, for every frame of gameplay that the player has control of a tetromino and doesn't have a combo going. The decay rate is dependent on the player's current "Internal Grade" and is shown on the table below in units of frames per point.

The number of "Internal Grade Points" awarded is dependent on 4 other variables:

  • Number of lines cleared: a 4-line clear is generally worth more than a 3-line clear and so on.
  • "Internal Grade": a higher "Internal Grade" generally means less points.
  • The line clear's position in a combo. Note that tetrises are an exception to this. They will score the same number of "Internal Grade Points" regardless of their position in a combo. Just like the CO medal, clearing 2 or more rows will increase the combo, while singles will merely maintain the current position.
  • The player's Level after the line clear.

The following formula determines the "Internal Grade Points" awarded by a particular line clear. The "ceil" indicates that when the Combo Multiplier is applied to the Basic Amount, the game rounds the multiplication up.

Awarded Grade Points = ceil(Basic Amount x Combo Multiplier) x Level Multiplier

The Basic Amount is determined by the player's current "Internal Grade". Also shown is the decay rate mentioned above.

Internal Grade System[d]
Internal
Grade
Displayed
Grade
Decay
Rate
Internal Grade Points awarded for:
Single Double Triple Tetris
0 9 125 10 20 40 50
1 8 80 10 20 30 40
2 7 80 10 20 30 40
3 6 50 10 15 30 40
4 5 45 10 15 20 40
5 4 45 5 15 20 30
6 4 45 5 10 20 30
7 3 40 5 10 15 30
8 3 40 5 10 15 30
9 2 40 5 10 15 30
10 2 40 2 12 13 30
11 2 40 2 12 13 30
12 1 30 2 12 13 30
13 1 30 2 12 13 30
14 1 30 2 12 13 30
15 S1 20 2 12 13 30
16 S1 20 2 12 13 30
17 S1 20 2 12 13 30
18 S2 20 2 12 13 30
19 S3 20 2 12 13 30
20 S4 15 2 12 13 30
21 S4 15 2 12 13 30
22 S4 15 2 12 13 30
23 S5 15 2 12 13 30
24 S5 15 2 12 13 30
25 S6 15 2 12 13 30
26 S6 15 2 12 13 30
27 S7 15 2 12 13 30
28 S7 15 2 12 13 30
29 S8 15 2 12 13 30
30 S8 10 2 12 13 30
31 S9 10 2 12 13 30

For example, internal grades 20 through 22 could be thought of as S4-, S4, and S4+, but TAP does not display these differently.

Depending on the number of rows cleared and the current size of the combo, a different combo multiplier is applied to the grade points.

Combo Multiplier
Combo
Size
Multiplier for:
Single Double Triple Tetris
1 1.0 1.0 1.0 1.0
2 1.2 1.4 1.5 1.0
3 1.2 1.5 1.8 1.0
4 1.4 1.6 2.0 1.0
5 1.4 1.7 2.2 1.0
6 1.4 1.8 2.3 1.0
7 1.4 1.9 2.4 1.0
8 1.5 2.0 2.5 1.0
9 1.5 2.1 2.6 1.0
10 2.0 2.5 3.0 1.0

Finally, depending on the level after the clear, one of four level multipliers is applied to the awarded grade points. This equals 1 + floor(level / 250), or equivalently a value from the following lookup table:

Level Multiplier
Level Multiplier
000-249 1
250-499 2
500-749 3
750-999 4

Eg. At level 555, Grade 1, clearing 2 doubles in a combo, the first and second doubles respectively will be worth: ceil(12 x 1.0) x (1 + floor(555 / 250)) = 12 x 3 = 36, ceil(12 x 1.4) x (1 + floor(558 / 250)) = 17 x 3 = 51

This is a complicated system that may be difficult to understand, but it ultimately measures how efficiently and consistently the player can stack and make non-singles in steadily increasing speeds. Further interesting observations about the grading system are as follows:

  • Immediately following a grade increase, the grade points are at 0. There is therefore nothing to lose from building the stack higher, until you clear a line.
  • From level 750-999, a tetris will always increase the internal grade.
  • The level multiplier is significant. When you enter section 700 and the music changes, it is a good idea to stack the screen high in order to clear more lines after level 750. Combined with the previous observation, 2 tetrises will get you 2 "Internal Grades" instead of only 1, doubling your rate of progress.
  • Combos aside, even though 2 singles are worth much less than a double, and 4 triples are less than 3 tetrises, 3 doubles are actually worth more than 2 triples.

M-Roll

Although it is possible to continue increasing the "Internal Grade" beyond 31, the displayed Grade will stop at S9. In order to achieve the M and Gm Grades, certain conditions must be met in order to activate a special credit roll at level 999 (often called the "M-Roll") where the tetrominoes become invisible as soon as they are locked. If the M-Roll isn't achieved, Orange line is awarded for simply clearing the credit roll.

TA

The conditions for the "M-Roll" are currently believed to include at least the following:

M-Roll Conditions
Level Time Tetrises Grade
000-500 ≤360 seconds (≤06:00:00)
000-999 ≤570 seconds (≤09:30:00) S9
000-100 ≤90 seconds (≤01:30:00) ≥1
100-200 ≥1
200-300 ≥1
300-400 ≥1
400-500 ≥1
500-600 ≤ average of the first 5 section times (rounded down) ≥1
600-700 ≤ average of the first 5 section times (rounded down) ≥1
700-800 ≤ average of the first 5 section times (rounded down) ≥1
800-900 ≤ average of the first 5 section times (rounded down) ≥1
900-999 ≤45 seconds (≤00:45:00)


The M Grade is awarded as soon as the "M-Roll" begins, and survival results in the Gm Grade.

TAP

The conditions for the "M-Roll" are the following:

M-Roll Conditions
Level Time Tetrises Grade
000-999 =<525 seconds (=<08:45:00) S9
000-100 =<65 seconds (=<01:05.00) =>2
100-200 =<65 seconds (=<01:05.00) =>2
200-300 =<65 seconds (=<01:05.00) =>2
300-400 =<65 seconds (=<01:05.00) =>2
400-500 =<65 seconds (=<01:05.00) =>2
500-600 =<2 seconds slower than the average of the first 5 section times (rounded down) =>1
600-700 =<2 seconds slower than section 500-600 =>1
700-800 =<2 seconds slower than section 600-700 =>1
800-900 =<2 seconds slower than section 700-800 =>1
900-999 =<2 seconds slower than section 800-900

Topping out during the "M-Roll" results in the M grade, while surviving the entirety of the "M-Roll" results in the Gm grade. In addition, clearing at least 32 lines rewards the Orange line Gm grade. The ranking prioritizes Orange Gm over Green Gm, regardless of clear time.[2][3]

TGM+

This mode features speeds similar to the original TGM, with one important gameplay addition to keep the game interesting: rising garbage during play, as in Sega's Bloxeed. An internal counter is incremented every time a tetromino is played without clearing lines; once this counter reaches 13 - floor(level / 100), a row of garbage rises from the floor of the playfield, and the counter resets.[e] The garbage follows the fixed pattern shown below, looping every 24 rows:

.GGGGGGGGG
.GGGGGGGGG
.GGGGGGGGG
.GGGGGGGGG
GGGGGGGGG.
GGGGGGGGG.
GGGGGGGGG.
GGGGGGGGG.
..GGGGGGGG
.GGGGGGGGG
.GGGGGGGGG
GGGGGGGG..
GGGGGGGGG.
GGGGGGGGG.
GG.GGGGGGG
G..GGGGGGG
G.GGGGGGGG
GGGGGGG.GG
GGGGGGG..G
GGGGGGGG.G
GGGG..GGGG
GGGG..GGGG
GGGG.GGGGG
GGG...GGGG


There is no grading system, medals, or ranking system in this mode. If you reach level 999, the credit roll will start, but locked tetrominos will not become invisible. Surviving this roll is not required to see the "Excellent!" message.

Speed timings

Gravity speed timings are the same as those of Master mode, while delay timings are the same as those of Normal mode.

T.A. Death

T.A. Death mode is identical to Master mode in gameplay, but the game begins and remains at 20g throughout (similarly to the 20g mode code). However, how quickly a tetromino is given out, how quickly a tetromino will lock into place, and other values that determine the speed of play steadily change as levels are cleared.

T.A. Death is possibly the most famous mode ever featured in a TGM game. A video originally called Death 800, which features a player breaking level 800, has floated around the Internet under the name Tetris Japan Finals, making the TGM series famous throughout the world. This video is very popular and was single handedly responsible for introducing most western players to the TGM series.[4] Arika currently hosts a much better Gm rank Death mode video: Death-Gm05.

Ranking

Only the M and Gm grades are achievable. The conditions are as follows:

  • If the player reaches 500 with a time greater than 3:25:00 the timer will stop, the credits will roll and the player is given an "Excellent!" but no grade.
  • If the player reaches 500 under (or equal to) 3:25:00, the M grade is given and the game will continue to 999.
  • Gm is awarded at 999 regardless of time or score. The game does continue through the credits, but winning or losing at that point has no effect.

Speed timings

Though Death mode has a fixed gravity of 20g, there are 4 other timings that shape the flow and speed of play.

Delays[c]
Level ARE
(frames)
Line ARE
(frames)
DAS
(frames)
Lock
(frames)
Line clear
(frames)
000 - 100 18 14 12 30 12
101 - 199 14 8 12 26 6
200 14 8 11 26 6
201 - 299 14 8 11 22 6
300 14 8 10 22 6
301 - 399 8 8 10 18 6
400 8 8 8 18 6
401 - 499 7 7 8 15 5
500 - 999 6 6 8 15 4

Some repercussions of this are that there is no time penalty for clearing singles instead of tetrises from level 100 through 299. Also, as these values decrease, the options for tetromino placement are gradually reduced, becoming a subset of what was once possible in 20g.

Doubles

Doubles is a two player cooperative mode that puts both players in one well that is 14 units wide instead of 10. In TAP, it is selectable from the menu. In The Grand Master 2, it was accessed one player holding down the start button on his/her side while the other player pressed the other start button to join in. In TAP, one credit pays for both players.

Each player has a separate level counter, and both players must reach level 300 for the win. Though the level counter does not stop at every x99 as in standard modes, the final 299 does require a line change to 300. If one player reaches 300 before the other, he enters 20g for the rest of the game. It is quite difficult to survive for long with 20g in such a wide well, so winning requires a fine degree of coordination between the players so that they reach 300 synchronously.

Versus

The versus mode in TAP works in a very similar way to that in its predecessor, TGM. Each player has their own field, and clearing two or more lines in their field will cause garbage lines to be sent to the bottom of their opponent's field. Unlike the multiplayer modes in other Tetris games, the garbage holes correspond to the location of the line clearing piece. This means that the usual playing style of the series, of leaving a column down the right for Tetrises is not as beneficial, because if both players do it then any garbage sent will line up with the opponent's Tetris hole. Alternating sides, or using other pieces to clear lines will send garbage that is more difficult to the opponent to clear. Oddly enough, the versus mode in Bloxeed' and Dreamworld's DuelTris worked in a similar manner.

All of the four single player modes can be played in Versus mode, although a Normal mode game will be temporarily converted to Master for the duration of the match, signified by the frame changing from grey stone to grey metal. The first player picks a mode, and starts as if playing alone. When the second player pushes their respective start button (assuming there is a credit) they will be asked if they want to challenge the other player. If they choose 'yes', then the other player will lose their game, "Here comes a new challenger" will scroll across the screen, and versus mode will start in whatever mode the first player was playing in. Normal, Master and Death use their respective speed curves for each player. TGM+ mode has garbage rising automatically from the bottom, in the same way it does on single-player. To prevent unwanted versus games, the first player can press their start button, which will cause "no more challenger" to display on the opposite field. Pressing the start button again cancels this effect. If a second player starts while "No more challenger" is displayed, then it will skip the challenge menu and go straight to the mode select.

For versus there is a default target level of 200, and a default time limit of 2:40:00. The target level can be changed in the game setup (in 100 level increments), with the time increasing or decreasing by 1:20:00 for every 100 levels. If a player tops out their field, then they lose. If neither player tops out their field in the allocated time limit, then the winner is the player with the highest level. If a player reaches the target level then the game ends and they are declared the winner. By default, the overall winner is the first player to win two games. Again, this can be changed in the game setup.

Items

Each player has a green bar to the side of their field. With each piece placement, this bar increases slightly. When the bar is filled, the next piece the player receives will be an item piece. The shape of the piece is retained, but the appearance of the individual composite blocks will be different, depending on the item. The piece is placed normally, and the item is used automatically when a line containing part of the item piece is cleared. Again, Bloxeed was the inspiration here. Many of the powerups, like the 16 ton weight, and the delete even, are based around the ones in Bloxeed. But unlike in Bloxeed, DuelTris, and Tetris DS, the entire piece counts as the item, instead of just one block of it.

Items can be turned off by each player holding their respective start buttons as Versus mode is initiated. If A+B is also held down on both players, garbage is also turned off completely, activating what the game calls "Cement mode."

Medal conditions

Medal conditions[5]
Medal Bronze Silver Gold
AC (All Clear) Complete 1 Bravo Complete 2 Bravos Complete 3 Bravos
RO (Rotation) Rotations/tetromino >= 6/5 from level 0 to 300 Rotations/tetromino >= 6/5 from level 300 to 700 Rotations/tetromino >= 6/5 from level 700 to 999
ST (Section Time) Approach section time record (<10 seconds slower)[i] Approach section time record (<5 seconds slower)[i] Beat section time record[i]
SK (Skill)
Master 10 Tetrises
Death 5 Tetrises
Big 1 Tetris
Master 20 Tetrises
Death 10 Tetrises
Big 2 Tetrises
Master 35 Tetrises
Death 17 Tetrises
Big 4 Tetrises
RE (Recovery) Perform 1 recovery[ii] Perform 2 recoveries[ii] Perform 4 recoveries[ii]
CO (Combo) Reach a combo of 4.
Big: Reach a combo of 2[iii]
Reach a combo of 5.
Big: Reach a combo of 3[iii]
Reach a combo of 7.
Big: Reach a combo of 4[iii]
  1. 1.0 1.1 1.2 Death ST records reset to the default 42 seconds every time the machine is switched on
  2. 2.0 2.1 2.2 Have 150 or more blocks in the playfield, then clear until <=70 blocks remain
  3. 3.0 3.1 3.2 Single line clears keep the current combo active, but do not add to it.

Scoring

Unlike the first game in the series, score is completely unimportant in the main game modes. The only mode where score counts for anything is Normal mode.

Compared to the first game, the scoring system has an added bonus for sonic drops, but still only awards score on line clears. TAP also changes the scoring system, adding a reward for fast play among other changes. The equations are:

TA: Score = ((Level + Lines)/4 + Soft + (2 × Sonic)) × Lines × Combo × Bravo

TAP: Score = ((Level + Lines)/4 + Soft + (2 × Sonic)) × Lines × Combo × Bravo + (Level_After_Clear)/2 + (Speed × 7)

Where:

  • Level is the current level you are on.
  • Lines is the number of lines you just cleared.
  • (Level + Lines)/4 is rounded up.
  • (Level_After_Clear)/2 is rounded up. Importantly, Level_After_Clear is different from (Level+Lines) for edge cases like reaching 300 in Normal mode, 500 when being torikan-stopped in Death mode, and reaching 999 otherwise.
  • Soft is the cumulative number of frames during which Down was held during the piece's active time. Note that this means manually locking pieces already on the ground will increase the Soft value by 1.
  • Sonic is the size of the single greatest sonic drop during the piece's active time. Note that this is non-cumulative.
  • If the previous piece cleared no lines, Combo is reset to 1. Otherwise its Combo value is (updated BEFORE the score):
    Combo = (previous Combo value) + (2 × Lines) - 2
    Example: 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.
  • Speed can be no less than 0, and is otherwise equal to:
    Speed = Lock Delay - Active Time
where Lock Delay is the number of frames of lock delay given out for that particular level, and Active Time is the number of frames the piece was active (which is a minimum of 1).

It should be noted that Normal mode multiplies line clear scores by 6. Also, the player is given a time bonus of 1253 × Seconds where Seconds is the amount of time in seconds, rounded up, that the clear time is below 5 minutes.

Development

Changes between TA and TAP

  • M-Roll conditions have been changed. Notably, the section time conditions have been altered and the required Tetrises per section have been increased for for the first 5 sections.
  • Two new modes have been added, TGM+ and T.A. Death.
  • Scoring formula has been changed, adding an extra term for the level after the line clear and another for placement speed.
  • The method for accessing Doubles has changed.

Codes

Item mode

When selecting either Master or TGM+ mode, hold B and C, then press Start while "READY" is still on-screen. If the code was correctly entered, the "NEXT" text will pulsate when the game starts. This code causes item pieces to appear like in 2-player versus mode, except all effects from items are sent to yourself.

Title screen codes

The following codes should be entered on the title screen, and only take effect in Normal mode and Master mode. Using them disqualifies the score from appearing in the rankings.

Name Code Effect
20G Mode DDDDDDDDCBA Forces maximum gravity.
Big Mode LLLLDCBA Tetrominoes are twice their normal size, simulating a 10 × 5 well.
TLS Mode ABCCBAACB The ghost piece does not disappear after level 100.

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

Notes

  1. Known in Japan as: Tetorisu Ji Abusoryūto Za Gurandomasutā 2 (テトリス ジ・アブソリュート ザ・グランドマスター2)
  2. RAM Locations:
    • 06064BF1: Current internal speed value (16-bit)
    • 06064BE0: Current Lock Delay value
    • 06064BE1: DAS counter
  3. 3.0 3.1 3.2 The following timing values are adjusted to what a player would observe, including inclusive DAS counting (internally DAS delay is counted exclusively and ARE excludes lock flash and the last frame).
  4. RAM Locations:
    • Internal Grade: 06079378
    • Internal Grade Points: 06079379
  5. RAM Locations:
    • 06064C30: Number of tetrominoes played without line clears
    • 06064C31: Position in garbage sequence

References

External links