DS

Harvest Moon DSMemory Game02/20/07
Harvest Moon DS: Sunshine IslandsUnlockable Pets04/22/08
Mario Party DSObtain Every Mini-Game12/04/07
Mega Man Star Force: DragonCipher Mail08/10/07

Game Boy Advance

Final Fantasy Tactics AdvanceDuplicate Items and Units04/09/04
Final Fantasy Tactics AdvanceJudge Missions Side-Quest06/18/04
Harvest Moon: Friends of Mineral TownUnlockable Items05/24/05
Tales of PhantasiaGame Unlockables07/20/04
Tales of PhantasiaOptional Character.03/20/06

PC

RPG Maker XPDebug Menu (Test Play Only)10/24/05
RPG Maker XPHidden Option Menu10/25/05
The Elder Scrolls V: SkyrimConsole Commands11/14/11

PlayStation

Future Cop: L.A.P.D.Unlock Bug Hunt06/17/04
RaymanMisc. Passwords02/15/04
RaymanRayman Sound Track10/25/05

PlayStation 2

Breath of Fire: Dragon QuarterNo shield for Bosch03/24/05
Star Ocean: Till the End of TimeMaze Of Tribulations11/02/04
Star Ocean: Till the End of TimeUrssa Cave Temple11/03/04
Wild Arms Alter Code: FBonus Boss Battle01/04/06
Wild Arms Alter Code: FOptional Boss Fights04/06/06
Wild Arms Alter Code: FUnlockable Characters04/06/06

PSP

Star Ocean: Second EvolutionExtra Difficulty Modes01/23/09
Ys: The Oath in FelghanaUnlockables11/05/10

Super Nintendo

Final Fantasy IIISave Cid06/21/05