DS

Death Note: Kira GameUnlock Arc 2 Characters02/22/07

Game Boy Advance

LEGO Star Wars: The Video GameUnlock Characters to buy in Freeplay03/30/05
NickToons RacingUnlockable Character06/19/02
Yu-Gi-Oh! Destiny Board TravelerUnlock Characters10/29/04
Yu-Gi-Oh! Worldwide Edition: Stairway to the Destined DuelUnlockables04/30/03

Game Boy Color

GameCube

Kirby: Air RideAir Ride Music and Sound Tests11/03/03
Kirby: Air RideUnlock Air Machines in Air Ride Mode10/21/03
Star Wars Rogue Leader: Rogue Squadron IIPassword Cheats11/25/01
WWE Day of ReckoningSpecial Entrances09/03/04
WWE WrestleMania X8Unlockables06/06/02

PC

Star Wars Jedi Knight: Jedi AcademyConsole Commands09/16/03

PlayStation 2

Duel MastersUnlockable Characters01/04/05
Duel MastersVarious Cheats01/10/05
LEGO Star WarsUnlockable Characters from the ? Door04/04/05
Medal of Honor FrontlineSnip-O-Rama Mode06/04/02

Super Nintendo

Mega Man X3Passwords12/16/02