Puyo Puyo!! 20th Anniversary Cheats :
UnLock all characters, cutscenes, and 9999 shop points
To unlock all characters, all cutscenes in the gallery, and obtain 9999 points for the shop enter the following commands at the title screen. You will hear Carbuncle's voice if it was done correctly. This code does not unlock the items found in the shop but you can enter this code multiple times to regain all points spent at the shop.