Dreamcast

AeroWingsUnlockables03/10/02
Ready 2 Rumble BoxingAlternate Backgrounds01/11/01
SoulCaliburWeapon Select Feature01/11/01
The House of the Dead 2Bonus Cats01/11/01

Nintendo 64

Duke Nukem 64Refill Health12/27/00
Extreme-G 2Codes01/04/01
In-Fisherman Bass Hunter 64Passwords02/18/02
Ken Griffey Jr.'s SlugfestPasswords06/29/04

Saturn

Die Hard TrilogyUse Cop Siren10/24/00
Fighting VipersAlways Win08/28/00
Fighting VipersExtra Character08/28/00
Fighting VipersExtra Option Menu08/22/00
Kidou Senshi Gundam Gaiden Vol. 1Unlockables07/28/01
Solar EclipseCheats12/21/01
Street Fighter: The MovieOptions Menu During Play08/28/00
X-Men: Children of the AtomOption Menu During Play08/19/00

Super Nintendo

Super Street Fighter IIDifferent Color Outfits!09/02/00