I-Spins in SRS
Different rotation systems that approximate SRS apply different wall kicks and floor kicks when the player twists the I tetromino.
Guideline SRS
Games such as Tetris Worlds and Tetris DS 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 the kick up is performed in preference to the kick down when rotating left:
Rotated right |
Soft dropped |
Rotated left |
However, an extra block impedes the choice of the upward kick position:
Rotated right |
Soft dropped |
Rotated left |
The following can be performed instead:
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 |