Sonic the Hedgehog 3 & Knuckles, A Gamer's Cheat Codes Wiki

Sonic the Hedgehog 3 & Knuckles (also known as Sonic 3 & Knuckles) is the 1994 platformer you can play by locking Sonic the Hedgehog 3 onto Sonic & Knuckles via Lock-On Technology. It's a combination of both games, containing all the Zones from both titles, all three characters, and even some brand new content repurposing other content. Certain liberties aside, this Lock-On title is what the developers intended Sonic the Hedgehog 3 to become, but time constraints resulted in the two games being

Level Select Cheat for Sonic Spinball on the Mega Drive [subtitles available]

Sonic 3 Complete, Sonic the Hedgehog Hacks Wiki

Sonic the Hedgehog 3 & Knuckles, A Gamer's Cheat Codes Wiki

SC Cheats & Glitches: Sonic 3 & Knuckles - Debug & Level Select

Sonic Classic Collection (2010), DS Game

Sonic the Hedgehog 2 (8-bit) – Sonic City Sonic the Hedgehog News, Media, & Community

Replay value - Wikipedia

A Gamer's Cheat Codes Wiki

Proto:Sonic the Hedgehog (Genesis) - The Cutting Room Floor

Sonic The Hedgehog 3 and Knuckles Special Stages (Blue Spheres)(Level Select)(with Sonic)