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Playstation - Beast Wars - Transformers cheats

Weapon power-up:
Pause the game play and hold L2, then quickly press Up, Down, Left, Right, 
Triangle, X, Square on your controller. Release the L2 button, then 
immediately push Start to resume the game. 

Skip stages:
Pause the game play and hold L2, then quickly press Up, Down, Left, Right, 
Triangle, X, X, Triangle, Right, Left, Down, Up on your controller. Release 
the L2 button, then  immediately push Start to resume the game.