Sonic Gems Collection Cheats - Xbox

Soundtrack songs

Can You Feel The Sunshine ACID Mix: Accumulate over three hours of game play in Sonic R.
Living in the City LTN Mix: Start Sonic R ten times
Sonic 6290 Mix and Sonic Boom D'mb Mix: Start Sonic CD five times
Sonic After 6290 Mix: Start Sonic CD ten times

Museum pictures

Sonic Adventure DX Artwork Set 1: Play Sonic Spinball five times
Sonic Adventure DX Artwork Set 2: Play Sonic Spinball ten times
Sonic Adventure DX Artwork Set 3: Accumulate over one hour of game play in Sonic Spinball
Sonic Adventure DX Artwork Set 4: Accumulate over two hours of game play in Sonic Spinball
Sonic CD Artwork Set 1: Play Sonic CD five times
Sonic CD Artwork Set 2: Play Sonic CD ten times
Sonic CD Artwork Set 3: Accumulate over one hour of game play in Sonic CD
Sonic CD Artwork Set 4: Accumulate over two hours of game play in Sonic CD
Sonic Championship logo: Complete Sonic: The Fighters
Sonic Heroes Movie Artwork Set 2: Play Tails Adventure ten times
Sonic Heroes Movie Artwork Set 3: Accumulate over one hour of game play in Tails Adventure
Sonic Heroes Movies Artwork Set 1: Play Tails Adventure five times
Sonic R Artwork Set 1: Play Sonic R five times
Sonic R Artwork Set 2: Play Sonic R ten Times
Sonic R Artwork Set 3: Accumulate over one hour of game play in Sonic R
Sonic R Artwork Set 4: Accumulate over two hours of game play in Sonic R
Sonic The Fighters Artwork Set 3: Accumulate over 1 hour of game play in Sonic: The Fighters
Sonic The Fighters Artwork Set 1: Play Sonic: The Fighters five times
Sonic The Fighters Artwork Set 2: Play Sonic: The Fighters ten Times
Sonic The Fighters Artwork Set 4: Accumulate over two hours of game play in Sonic: The Fighters
Sonic Vs. Metal Sonic Sonic Screensaver Artwork: Complete Sonic CD

Museum bonus pictures
After unlocking these pictures, select them in the indicated order to unlock the corresponding bonus. A sound will confirm correct code entry.

160 (Chaotix logo from the top): 146, 145, 144, 142, 143
180 (Shape of a GEM): 162, 163, 164, 166, 170, 172, 174, 178
200 (Order pictures appear in the credits): 12, 23, 54, 10, 22, 25, 39, 56
218 to 219 (7 Metal Sonics): 10, 25, 39, 40, 56, 93, 160
220 (8 Sega logos): 18, 106, 118, 136, 137, 138, 139, 140
260 (Fighters CPU order): 5, 4, 9, 8, 3, 6, 7, 2, 10, 11
281 to 285 (6 Holiday): 110, 112, 122, 130, 132, 137

320: Complete all of the goals.
286 through 295: Watch the credits five times.
296 through 300: Watch the credits ten times.

Museum movies

Sonic Adventure Intro Video: Accumulate over 24 hours of game play with over 70 overall games played.
Sonic Heroes Trailer: Accumulate over 24 hours of game play with over 30 overall games played.
Sonic's History Video: Accumulate over 24 hours of game play with over 50 overall games played.

Hints
Allow a game to idle for over three hours to unlock the "Hints" option in the "Extra" menu.

Unlocking Museum bonuses
To unlock most of the pictures in the Museum, just start each of the three main games five or ten times. Then, play each one for a few hours. Just leave the game idling. You do not have to be actually playing for that amount of time.

Use the following trick to unlock the playable endings, the three movie trailers and the last picture in the museum faster. Change the day portion of Gamecube's system date. For example, change August 24, 2005 to August 25, 2005. Then, start the game. Once you go to the museum you will have more playable endings or movie trailers unlocked. Repeat this process until you have all three movie trailers and sixteen playable endings in the museum. This will get you closer to unlocking the final illustration.

Play Sonic Gems Collection once every day and accumulate over 24 hours of game play. Then, start the game 30 to 70 times to unlock the different end Bosses to many classic Sonic games that you can play.

Museum slide show
Press [B] on looking at a Museum picture to start a slide show featuring all unlocked pictures.

Unlock full versions of game demos
Once you have unlocked all the playable ending demos, you can use this trick to unlock their full game counterparts. Go to Sonic The Hedgehog (either version), Sonic 2, Sonic 3, Sonic 3D Blast, Sonic Spinball, Robotnik's Mean Bean Machine, or Sonic Chaos. Keep intentionally killing Sonic until you are out of lives. The game will end, then restart at its own title screen. From there, you can start at level 1 of the game and play until the timer reaches zero.