From Hard Drop Tetris Wiki
Different rotation systems that approximate SRS apply different wall kicks and floor kicks when the player twists the I tetromino.
Official SRS
Tetris Worlds, Tetris DS and Tetris The Grand Master Ace are based on the Tetris Guideline, including SRS. They have the following behavior:
|
Rotated left |
Soft dropped |
Rotated right |
But the wall kicks are not symmetric, as Tetris Worlds, Tetris Deluxe, Tetris DS and Tetris The Grand Master Ace prefer to kick up rather than down when rotating left...
|
Rotated right |
Soft dropped |
Rotated left |
...unless there is another block to force a kick down:
|
Rotated right |
Soft dropped |
Rotated left |
The following can be performed instead, at least in tetris DS.
|
Rotated left |
Moved right |
Soft dropped |
Rotated left |
Tetris Advance
Minna no Soft Series: Tetris Advance, while implementing SRS, included several bugs including the lack of some wall kicks.
|
Rotated left |
Soft dropped, can't rotate right |
Lockjaw
In Lockjaw, both left and right prefer to kick down rather than up when rotating:
|
Rotated right |
Soft dropped |
Rotated left |
Tetris Best/Perfect/Return
Tetris Best, Tetris Perfect and its mods use a custom symmetrical rotation system that always prefers to kick down than up, so the problem is solved. Also, the additional kicks not in SRS make it possible to make I-spin Tetris:
|
Rotated right |
In Tetris Best, this is the extreme kick, so this setup is needed. In Tetris Perfect and mods, it may be displaced up+right due to 3-kicks.