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There were originally plans to have Knuckles' Chaotix and SegaSonic the Hedgehog included in the game. The only remnants of Knuckles' Chaotix is in the game's art gallery, and SegaSonic the Hedgehog was cut due to problems with emulating the game's original trackball control scheme.
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In the Museum of Sonic Gems Collection, a number of classic Sonic games can be unlocked. These games start at the final boss, and can only be played for a set amount of time.
By using a cheat device to freeze the clock it's actually possible to play the entire game after the final boss is defeated.
By using a cheat device to freeze the clock it's actually possible to play the entire game after the final boss is defeated.
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There are several games that are not present in the US version, but their listings in the games menu can be seen with Action Replay codes. These games include:
• Bonanza Bros
• Streets of Rage 1
• Streets of Rage 2
• Streets of Rage 3
• Wonder Boy III: Monster Lair
• Wonder Boy in Monster World
• Monster World IV
• Sonic Eraser
Bonanza Bros and each Streets of Rage game are unlockable in the Japanese version but none of these games can actually be played on the US version.
• Bonanza Bros
• Streets of Rage 1
• Streets of Rage 2
• Streets of Rage 3
• Wonder Boy III: Monster Lair
• Wonder Boy in Monster World
• Monster World IV
• Sonic Eraser
Bonanza Bros and each Streets of Rage game are unlockable in the Japanese version but none of these games can actually be played on the US version.
Related Games
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Sonic the Hedgehog 4: Episode II
Sonic Dash
Amy & Rouge Tennis
Sonic's Edusoft
Sonic Advance 3
Sonic Skateboard
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Sonic Generations
Sonic Mania
Sonic DS
Sonic Chronicles: The Dark Brotherhood
Sonic the Hedgehog Pocket Adventure
Sonic's Ultimate Genesis Collection
LEGO Dimensions
Sonic Adventure 2: Battle
Sonic 3D Blast
Knuckles' Chaotix
Sonic Rush
Sonic and the Black Knight
Sonic Rush Adventure
Sonic Drift 2
The Murder of Sonic the Hedgehog
Sonic CD
Sonic Battle
Sonic the Hedgehog 4: Episode I
Sonic Colors
Sonic Riders
Sonic Heroes
Sonic Adventure DX: Director's Cut
Mario & Sonic at the Olympic Games
Sonic & All-Stars Racing Transformed
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Sega Smash Pack Volume 1
Sonic Shuffle
Sonic the Fighters
Sonic the Hedgehog's Gameworld
Sonic Mars
Sonic Boom: Rise of Lyric
Tails Soccer
Sonic Superstars
Shadow the Hedgehog
Sonic Pinball Party
Sonic X Shadow Generations
Mario & Sonic at the London 2012 Olympic Games
Shadow Basketball
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Sonic Generations
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