DS

Feel the Magic: XY/XXManiac Mode - Heads04/24/06
Feel the Magic: XY/XXManiac Mode - Outfits04/24/06
Feel the Magic: XY/XXManiac Mode - Shoes04/24/06

GameCube

Hello Kitty: Roller RescueCinematic04/24/06
Hello Kitty: Roller RescueCostume09/12/05
Hello Kitty: Roller RescueUnlockable Menu Characters04/25/06
Hello Kitty: Roller RescueUnlockable weapons04/24/06

Nintendo 64

Aero Fighters AssaultPlay as Bad Guys in Deathmatch04/24/06
Doom 64Ultimate Cheat Code04/24/06

Online/Browser

NeopetsHidden Avatars09/15/03
NeopetsHidden Battledome Challengers09/16/03