In-game reset:
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Hold Start + A + B + X for a few seconds during game play.
Sonic Chaos: Level select:
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Press Up(4), Right, Left, Right, Left, Start when
„Press Start” appears at the Sonic Chaos title screen.
Sonic Labyrinth: Level select:
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Press Up(2), Right(3), Down(6), Left(9) when
„Press Start Button” appears at the Sonic Labyrinth title screen.
Sonic Spinball: Level select:
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Enter the „Sound Test” option for Sonic Spinball.
Then, play the following songs in order: 0, 2, 1, 5, 6, 6.
Sonic Spinball: Faster background music:
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Enter the „Sound Test” option for Sonic Spinball.
Then, play the following songs in order: 0, 4, 2, 5, 5, 7.
Sonic Spinball: Disable gravity:
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Enter the „Sound Test” option for Sonic Spinball.
Then, play the following songs in order: 0, 9, 0, 1, 6, 8.
Sonic Spinball: Zoomed in view:
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Enter the „Sound Test” option for Sonic Spinball.
Then, play the following songs in order: 0, 2, 1, 1, 6, 6.
Sonic The Hedgehog 2: Level select:
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At the Sonic The Hedgehog 2 title screen,
Tails will blink his eyes (first once, then two times quickly).
While holding Down/Left + A + B, tap Start just when his eye
shuts on the second blink of the double-blink.
