A rotation system broadly represents where and how tetrominoes spawn, how they rotate, and what wall kicks they may perform. Different rotation systems exist through a broad spectrum of games, some having their own unique system, others in a series may change only a little. Notable systems:
- Original Rotation System, used by the first Tetris game.
- Super Rotation System (or SRS). This is the one used by the Tetris Guideline.
- Arika Rotation System (or ARS). Also known as TGM
- Sega Rotation System. The colors associated with it are the same ones used in TGM.
- Nintendo Rotation System
- DTET Rotation System