CheatCodes.com has all the official Puyo Puyo Party N64 cheats to unlock everything. If you know of any that we don't have, please let us know.
All published and official codes as of Monday May 20, 2013 for Puyo Puyo Party are shown below.
Select one player or two player mode. Then at the character selection screen, hold R and press A.
Found some tricks that we don't have? Got some helpful hints, tips, or tactics we don't know about? Tell us and you could win a free Nintendo64 game (or any other game you want for any video game system)!