Dreamcast

NBA 2KPasswords06/07/01

Game Boy Color

Dance Dance Revolution GBHidden Mode11/29/04

GameCube

Animal CrossingTrees will grow no matter what.02/25/05
Ice Age 2: The MeltdownCheats03/24/06

Genesis

Brutal: Paws of FuryHidden Characters02/01/05

Nintendo 64

NFL Quarterback Club 98Secret Codes11/18/03
NFL Quarterback Club 99Passwords01/26/05

PlayStation 2

Ice Age 2: The MeltdownCheats03/24/06
Sonic RidersHidden Cameo Characters02/27/06

Xbox

Sonic RidersHidden Cameo Characters02/27/06
Sonic RidersNew Characters02/24/06
Star Wars: Knights of the Old RepublicBring any party member into the Temple on unknown planet.01/23/06