CheatCodes.com has all the official Thrill Kill PSX 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 Wednesday May 22, 2013 for Thrill Kill are shown below.
Beat the game on the medium difficulty level.
Complete all of a character's moves in practice mode. Then at the character selection screen, highlight a fighter and press L1 + L2.
During a fight, press L1 + L2 + R1 + R2 + Punch 1 + Kick 1 + Select.
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