DS

Imagine Figure SkaterUnlock Secret Accessories06/06/08
Imagine Figure SkaterUnlock Sound Mode06/06/08

Online/Browser

NeopetsFlash Game Cheats09/20/03
NeopetsUse Grundo as a ball in Zurroball03/23/04

PlayStation

Magical Drop FUnlock Extras08/18/11
Magical Drop FUnlock Lovers Story Mode08/18/11
Magical Drop FUnlock Playable Character Burnz08/18/11

PlayStation 2

Arcana HeartUnlock Bonus Gallery Picture04/14/08
OkamiEnd Game Unlockables09/21/06

PlayStation Vita

Tokyo Jungle MobileUnlock ERC-003 and ERC-2000 for Purchase12/11/13

Wii

OkamiEnd Game Unlockables04/17/08