Super Bust-A-Move - Platform: Playstation 2

Unlock More Stages
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When the Push Start screen shows up, press: 
Triangle, Left, Right, Triangle A small icon will 
show up in the upper right hand corner saying that 
you have unlocked new stages. The extra stages are 
in Puzzle mode. 

Unlock More Characters
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When the Push Start Screen shows up press: 
Triangle, Right, Left, Triangle An icon will show up 
in the upper left hand corner of the screen saying that 
you have unlocked new characters.