Nintendo Rotation System
From Hard Drop Tetris Wiki
Right-handed version was used in Tetris (NES, Nintendo) and Tetris & Dr. Mario. Tetrominoes spawn with their highest block on row 20.
Left-handed version was used in Tetris (Game Boy). Tetrominoes enter with their highest block on row 17.
No wall kick and no lock delay.
See also
Tetris and other puzzle games published by Nintendo {{}}
Console: Tetris (NES, Nintendo) | Tetris 2 | Tetris & Dr. Mario | 3D Tetris | The New Tetris | Tetris 99
Handheld: Tetris (Game Boy) | Tetris Blast | Tetris DX | Pokémon Tetris | Tetris DS | Tetris Axis
Topics: Nintendo Rotation System | Nintendo Wi-Fi Connection
Other block games: Dr. Luigi | Dr. Mario | Kirby's Avalanche | Kirby's Star Stacker | Tetris Attack | Tetrisphere | Wario's Woods | Yoshi | Yoshi's Cookie