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XBox - Tetris Worlds cheats

Infinite Flips
When a piece reaches the bottom it can still be flipped infinitely. 

Skip levels in 2-player mode:
If you can't win within the time limit you can't go to next level. 
If you lose on the actual stage, you have to play on level one. But if you 
complete level one, you will be on higher level than previously were.