Here are some cheats and tips for the game Tetris.
Turbo mode:
Hold Down and press Start at the title screen
to begin game play. A small heart will appear with the level number.
Expert mode:
Press Start to pause game play, then press Select.
The preview window will not show the next piece when game play
resumes.
Rockets:
Rockets will appear after completing a level 9 height 5 B
game; or passing 100,000 and 200,000 points in a type A game.