Sonic the Hedgehog for PlayStation 3 - Cheats, Codes, Guide, Walkthrough, Tips & Tricks

VGChartz - extensive game chart coverage, including sales data, news, reviews, forums, & game database for PS5, Xbox Series, Nintendo Switch & PC

Super Sonic achievement in Sonic Origins

Sonic The Hedgehog 2 cheat for Mega Drive/Genesis - Level Select (with save state for emulators)

Sonic Mania Cheats, Codes, and Walkthrough

Sonic Superstars - Review - NookGaming

Sonic Mania, A Gamer's Cheat Codes Wiki

Sonic Adventure 2 Reviews, Cheats, Tips, and Tricks - Cheat Code Central

Sonic Adventure 2 for Sega Dreamcast - Cheats, Codes, Guide, Walkthrough, Tips & Tricks

Sonic and the Black Knight for Wii - Cheats, Codes, Guide, Walkthrough, Tips & Tricks

Walkthrough - IGN

sega GemuBaka

Let's Play Sonic 3 & Knuckles [Bonus (1/2)]

Sonic Advance 2 for Game Boy Advance - Cheats, Codes, Guide, Walkthrough, Tips & Tricks

PS3 Cheats - Sonic All-Stars Racing Guide - IGN

Sonic Mania Cheats, Codes, and Walkthrough