# Sonic 3 & Knuckles

> Sonic 3 & Knuckles is the complete 1994 game formed by locking Sonic 3 onto Sonic & Knuckles, with every zone, all characters and Super Emeralds.

Web page: https://emulationking.com/sega/genesis/games/sonic3andknuckles/
Page updated: 2026-09-30

- Console: SEGA Genesis / Mega Drive
- Released: 1994
- Developer: Sega Technical Institute

Sonic 3 & Knuckles is the combined game made by attaching a Sonic the Hedgehog 3 cartridge to Sonic & Knuckles, released by Sega for the Mega Drive in 1994. It plays both halves as one adventure from Angel Island to the Doomsday Zone.

Sonic, Tails and Knuckles can all play the whole game, and collecting the Chaos Emeralds and then the Super Emeralds in the extra special stages unlocks Hyper forms and the true ending. It is often seen as the high point of the Mega Drive Sonic games.

Native ports include Sonic 3 A.I.R., a widescreen remaster that runs the game's logic from scripts, and a static recompilation.

## Sonic 3 & Knuckles PC Ports

- [Sonic 3 & Knuckles Recomp](https://emulationking.com/sega/genesis/games/sonic3andknuckles/ports/sonic3krecomp/index.md): Sonic 3 & Knuckles Recomp is mstan's static recompilation of the Mega Drive Sonic 3 & Knuckles for Windows and Linux, with widescreen.
- [Sonic 3 A.I.R.](https://emulationking.com/sega/genesis/games/sonic3andknuckles/ports/sonic3air/index.md): Sonic 3 A.I.R. is a widescreen remaster of Sonic 3 & Knuckles by Eukaryot, running the game's logic in its own engine with many options and mod support.