A rotation system broadly represents where and how tetrominoes spawn, how they rotate, and what wall kicks they may perform. Different rotation systems exist throught a broad spectrum of games, some having their own unique system, others in a series may change only a little. Notable systems:

• Super Rotation System (or SRS)
• Arika Rotation System (or ARS)
• Sega Rotation System
• Nintendo Rotation System
• DTET Rotation System