Classic Sonic: 1991 - 2017 : r/SonicTheHedgehog

Best Sonic Games Of All Time

Sonic the Hedgehog at 30: How Sega conquered the video games industry – and then threw it all away

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Classic Sonic From Sonic Mania : r/SonicTheHedgehog

Sonic the Hedgehog Rev 1 : Sega : Free Borrow & Streaming : Internet Archive

Sonic the Hedgehog Pinball Machine, Pinball Hype Index

How many Sonic the Hedgehog games are there?

With the various Sonic cartoons we've had over the years: What would be YOUR own vision of a Sonic animated series? : r/SonicTheHedgehog

Blue Blur_26

Nostallgia Brasil: Sonic the Hedgehog (16-Bit)

Sonic The Hedgehog, PDF document