O mistério por trás das músicas do Sonic 2
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Sonic 2 Lost Stages Revealed
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Sonic the Hedgehog 2 LOST BITS | MORE PROTOTYPES ! [TetraBitGaming]
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Harmonic Rhythm in Sonic the Hedgehog's Music
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Protótipo do Sonic 1 (e Knuckles) - Mas funciona em hardware real?
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EVEN MORE Impressive Sonic Games on Scratch!
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Testing Scary Mario Myths to Solve Them...
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Sonic CD - The Mystery Of R2 - What Do We Know So Far???
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