Sonic the Hedgehog 2 Review - GameSpot

Sonic the Hedgehog 2 is a classic run-and-jump platformer that's as much fun now as it was in 1992.

Sonic Adventure 3 (XxROTSA2xX), Sonic Battalion Wiki

Sonic Superstars Review

Movie Review – Sonic The Hedgehog 2 – Fernby Films

Sonic Boom: Fire & Ice - IGN

Sonic the Hedgehog Genesis, Sonic Wiki Zone

Best Sonic Games: Ranking The Top 10 Entries In Series History - GameSpot

Sonic the Hedgehog 3 Review - GameSpot

Sonic Adventure - Sega Dreamcast : Sega Dreamcast: Video Games

Sonic The Hedgehog 2 HD Project (Fan Game) - Is it any good?

Sonic the Hedgehog (film), Sonic Wiki Zone