Sonic 1, 2 & 3 Prototype Comparison

Sonic 1, 2 & 3 Prototype Comparison (First Zone)

The Sonic Trilogy Prototypes

Sonic 3 Proto/PC/Origins/Port Soundtrack Comparison (Read Description)

Sonic Origins Vs Sonic 3 Prototype But With Gumball

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Sonic 3 Prototype Music VS Sonic Origins (spoiler: they butchered it)

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Sonic the Hedgehog - Early Prototype vs. Final Version | Side by Side

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Sonic the Hedgehog (Sega/1991) Title Screen Comparison (US/JP)

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Which Sonic Sprite Is Best?

Old video I made But my first mania style sonic 3 air mods is out.

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Sonic 3 Extra Life Jingle Comparison

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Sonic the Hedgehog 2 | Versions Comparison | Genesis, Arcade, Saturn, J2ME, DS, 3DS, iOS and Android

Sonic the Hedgehog 1-2-3 vs Fan Made HD Remakes | Graphics Comparison

Sonic origins music vs sonic 3 prototype

The 3 Different Versions of Sonic 1

Sonic the Hedgehog 3 and Sonic and Knuckles Theme Comparisons

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Sonic the Hedgehog BETA - NA Prototype

Sonic the Hedgehog (Prototype) - Walkthrough

Razor & Zenon Sonic Videos

Sonic Mania vs Sonic 1, 2, 3, CD, & Knuckles ALL COMPARISONS

Sonic the Hedgehog (1991) Java vs Genesis vs GameGear vs GBA vs NES vs SMG vs DS vs 3DS vs GC vs PS3