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{{Infobox |title = Tetris DX
{{hatnote|Not to be confused with [[Tetris Deluxe]], a game released for western mobile phones.}}
 
{{Infobox |title = Tetris DX
|developer =  Nintendo  
|developer =  Nintendo  
|publisher =  Nintendo  
|publisher =  Nintendo  
|released = 21, Oct 1998 (Japan)<br />31, Oct 1998 (USA)<br />1, Jul 1999 (Europe)
|released = JP: 21, Oct 1998<br />US: 31, Oct 1998<br />EU: 1, Jul 1999
|platform = Game Boy Color
|platform = Game Boy Color
|preview = 1
|preview = 1
|playfield = 10x18
|playfield = 10 &times; 18
|hold = No
|hold = No
|hard = No
|hard = No
|SRS = Bounding box, wall kick, SRS predecessor
|system = Bounding box, wall kick, [[SRS]] predecessor
|boxart = Tetris_DX_Boxart.jpg‎
|title-scrn=Tetris_DX_title.png
|title-scrn=Tetris_DX_title.png
|ingame-scrn=Tetris_DX_play.png
|ingame-scrn=Tetris_DX_play.png
}}
}}
''Not to be confused with [[Tetris Deluxe]], a game released for western mobile phones.''


'''Tetris DX''' was a Game Boy Color game as an enhancement of Nintendo's original [[Tetris (Game Boy)|Game Boy Tetris]], with two added gameplay modes (Ultra, lasting 3 minutes; and Vs. CPU, a match against the computer), a profile/save feature, and color graphics on [[Game Boy Color]] and above. In addition, the game's [[rotation system]] had a glitch which lets a player move any [[tetromino]] except ''O'' upward by holding the direction against a wall while rotating in the opposite direction.
'''''Tetris DX''''' is a Game Boy Color game that enhances Nintendo's original [[Tetris (Game Boy)|Game Boy Tetris]], with three new gameplay modes, a profile/save feature, and color graphics on [[:Category:Games Boy Color games|Games Boy Color games]] and above. The game's [[rotation system]] has a glitch which lets players move any [[tetromino]], except the O-piece, upward by holding the direction against a wall and rotating in the opposite direction.
 
== Modes ==
* [[Marathon]] (score maxes at 9,999,999)
* [[Ultra]]
* [[40 lines]]
* Vs. CPU opponent
 
== Power ==
Gameplay data is recorded and stored as "POWER". Each profile has its own POWER data. Using a link cable, this data can be transferred to another cart.
 
In VS. COM, this can be used to play vs a CPU against a local profile, or a transfered profile's game data.
 
Your power increases as you play better games using your profile.


== Rotation system ==
== Rotation system ==
[[Image:SRS-pieces.png|thumb|All rotation states of all seven tetrominoes in SRS. From top to bottom: I, J, L, O, S, T, Z. The circle doesn't appear in the game; it helps to illustrate the axis on which each tetromino rotates. Colors differ between SRS and TDX. Notice that at least J, L, and T tetrominoes start oriented like the third column.]]
[[Image:TDX-pieces.png|thumb|All rotation states of all seven tetrominoes in TDX. From top to bottom: I, J, L, O, S, T, Z. The circle doesn't appear in the game; it helps to illustrate the axis on which each tetromino rotates.]]
 
The rotation system is an early version of what would become [[SRS]].
The rotation system is an early version of what would become [[SRS]].
Tetrominoes of width 3 rotate as if in a bounding box, though L, J, and T start flat side up.
Like in SRS, tetrominoes of width 3 rotate as if in a bounding square; unlike in SRS, L, J, and T start flat side up.
 
TDX first tries rotation about the center of the box (the blue circle).
:''The following description is based on a machine translation of a document written in Japanese into English. It may have been misunderstood. You can help TC wiki by confirming this behavior.''
If this fails, it tries rotation about an alternate center displaced by one cell (the gray circle).
TDX first tries rotation about the center of the bounding box (the white circle in the SRS diagram), then rotation about the bottom of the bounding box (the space below the white circle in the third column).
For I, S, and Z, this center starts out one cell above the ordinary center; for L, J, or T, it starts out one cell below.


=== Wall climbing ===
This rotation system is exploitable, especially on low levels:
{|
|-valign="top"
|<playfield>
G.........
G.........
GSSS......
G.S.......
G.........
</playfield>
Charge [[DAS]]
|<playfield>
G.........
G.S.......
G.CS......
G.S.......
G.........
</playfield>
Rotate left
|<playfield>
G.........
GS........
GSS.......
GS........
G.........
</playfield>
Shift left (DAS)
|<playfield>
G.........
GSSS......
G.C.......
G.........
G.........
</playfield>
Rotate right about<br>alternate center
|}
This particular exploit was fixed in SRS.


=== Infinity ===
Ordinarily, Tetris DX [[lock delay]] follows step reset behavior: only downward motion under [[Drop#Gravity|gravity]] resets the lock delay timer.
But rotation about the alternate center does [[Infinity|reset the timer]] used for gravity.
This can be exploited by placing a piece in a corner and rotating it back and forth about the alternate center:
{|
|-valign="top"
|<playfield>
G.........
G.........
G.C.......
GSSS......
GGGGG.....
</playfield>
|<playfield>
G.........
GS........
GSC.......
GS........
GGGGG.....
</playfield>
|}


<br clear="all">
<br clear="all">
== See also ==
{{Nintendo games}}
== External links ==
== External links ==
*[http://www.din.or.jp/~koryan/tetris/roll-o2.htm#03 Koryan's description of Sega Tetris, TGM, and Tetris DX rotation systems (Japanese language)]
*[http://www.din.or.jp/~koryan/tetris/roll-o2.htm#03 Koryan's description of Sega Tetris, TGM, and Tetris DX rotation systems (Japanese language)]
**[http://translate.google.com/translate?u=http%3A%2F%2Fwww.din.or.jp%2F%7Ekoryan%2Ftetris%2Froll-o2.htm&langpair=ja%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools English translation using Google Language Tools]
**[http://translate.google.com/translate?u=http%3A%2F%2Fwww.din.or.jp%2F%7Ekoryan%2Ftetris%2Froll-o2.htm&langpair=ja%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools English translation using Google Language Tools]
{{Nintendo games}}


[[Category:Games List]]
[[Category:Games List]]
[[Category:Game Boy Color games]]

Revision as of 04:51, 18 August 2019

Not to be confused with Tetris Deluxe, a game released for western mobile phones.
Tetris DX
Tetris DX Boxart.jpg
Developer(s)Nintendo
Publisher(s)Nintendo
Platform(s)Game Boy Color
ReleaseJP: 21, Oct 1998
US: 31, Oct 1998
EU: 1, Jul 1999
Gameplay info
Next pieces1
Playfield size10 × 18
Hold pieceNo
Hard dropNo
Rotation systemBounding box, wall kick, SRS predecessor
Tetris DX title.png
Tetris DX play.png

Tetris DX is a Game Boy Color game that enhances Nintendo's original Game Boy Tetris, with three new gameplay modes, a profile/save feature, and color graphics on Games Boy Color games and above. The game's rotation system has a glitch which lets players move any tetromino, except the O-piece, upward by holding the direction against a wall and rotating in the opposite direction.

Modes

Power

Gameplay data is recorded and stored as "POWER". Each profile has its own POWER data. Using a link cable, this data can be transferred to another cart.

In VS. COM, this can be used to play vs a CPU against a local profile, or a transfered profile's game data.

Your power increases as you play better games using your profile.

Rotation system

All rotation states of all seven tetrominoes in TDX. From top to bottom: I, J, L, O, S, T, Z. The circle doesn't appear in the game; it helps to illustrate the axis on which each tetromino rotates.

The rotation system is an early version of what would become SRS. Like in SRS, tetrominoes of width 3 rotate as if in a bounding square; unlike in SRS, L, J, and T start flat side up. TDX first tries rotation about the center of the box (the blue circle). If this fails, it tries rotation about an alternate center displaced by one cell (the gray circle). For I, S, and Z, this center starts out one cell above the ordinary center; for L, J, or T, it starts out one cell below.

Wall climbing

This rotation system is exploitable, especially on low levels:

G.........
G.........
GSSS......
G.S.......
G.........

Charge DAS

G.........
G.S.......
G.CS......
G.S.......
G.........

Rotate left

G.........
GS........
GSS.......
GS........
G.........

Shift left (DAS)

G.........
GSSS......
G.C.......
G.........
G.........

Rotate right about
alternate center

This particular exploit was fixed in SRS.

Infinity

Ordinarily, Tetris DX lock delay follows step reset behavior: only downward motion under gravity resets the lock delay timer. But rotation about the alternate center does reset the timer used for gravity. This can be exploited by placing a piece in a corner and rotating it back and forth about the alternate center:

G.........
G.........
G.C.......
GSSS......
GGGGG.....
G.........
GS........
GSC.......
GS........
GGGGG.....


External links