PSP Cheats and Codes (K)
KAZooK Cheats and Secrets - Sony PSP
Cheats, codes, and secrets for KAZooK on the Sony PSP
Killzone: Liberation Cheats and Secrets - Sony PSP
Cheats, secrets and unlockables for Killzone: Liberation on Sony PSP.
King Kong PSP Cheats and Unlockables
Unlock the alternate ending level in King Kong The Official Game of the Movie on the Sony PSP. Also contains links to PS2 King Kong cheats, which may also work but have not been verified.
Kingdom of Paradise Cheats and Secrets for Sony PSP
Use the little known game save secret to add more replay value to Kindom of Paradise on the Sony PSP video game system. Also contains special cheat codes to gain items which can only be obtained via the codes.