|Playfield size||10 × 20|
|Rotation system||Sega rotation|
Tetris S is a Sega Saturn game with Sega rotation. It has three modes, classic, versus cpu, and versus opponent.
Classic mode is based on the 1988 Sega arcade version. Level rises every 4 lines, or after a fixed period of time. Scoring is the same as in the arcade version.
Difficulty is set in the options menu.
In this game, attacks don't send garbage. instead they speed up your opponent's blocks. The speedup is indicated by bananas. The more lines cleared at once, the longer and faster the speedup: