This game is also available on PS2.
Retro Game Cheats for Sonic Gems Collection (Gamecube)
Effect: Unlocks "Sonic Adventure 2 artwork set 1" in the Museum.
Effect: Unlocks "Sonic CD Artwork Set 3" in the museum.
Effect: Unlocks "Sonic Vs. Metal Sonic: Sonic Screensaver Artwork" in the museum.
Effect: Play Secret stage
When:
During the Sound Test mode
How:
Enter this code: PM 07 DA 07, into the sound test menu to unlock the special secret stage.
Submitted By:
Effect: View cool artwork of Robotnik, Metal Sonic and sonic.
When:
During the Sound Test mode.
How:
Enter this code: PM 03 DA 01, into the sound test menu and you'll get DJ artwork.
Submitted By:
Effect: Sonic R - Unlock Egg Robo
When:
During the game
How:
Get all of the tokens in Regal Ruins. And then finish in 3rd place or above and beat Egg Robo.
Submitted By:
Effect: Sonic R - Metal Knuckles
When:
During the game
How:
Get all of the tokens in Reactive Factory, finish in 3rd place or above, and beat Metal Knuckles
Submitted By:
Effect: Unlock extra games, Vectorman 2
When:
N/A
How:
Play the Sonic Gems collection for 7 hours and play Vectorman at least once.
Submitted By:
Effect: Unlocks "Chaotix artwork set 4" in the museum.
Effect: Unlocks "Chaotix artwork set 5" in the museum.
Page: