Sonic Mega Collection is a compilation of various Sonic games from the Mega Drive era alsongside some extra Sega games. Originally released for the Nintendo Gamecube, it was later the game was also released for Xbox, PS2 and PC under the title Sonic Mega Collection Plus which included the added bonus of some Sonic Game Gear titles.
- Sonic the Hedgehog (16-Bit)
- Sonic the Hedgehog 2 (16-Bit)
- Sonic the Hedgehog 3
- Sonic & Knuckles
- Sonic the Hedgehog Spinball
- Sonic 3D Blast
- Dr. Robotnik's Mean Bean Machine
- Sonic 3 & Knuckles
- Knuckles In Sonic 2
- Blue Sphere
- The Ooze (Japanese version only)
- Comix Zone (Japanese version only)
 Mega Collection Plus
As stated, the game was later released on Xbox, PS2 and PC with an additional set of Game Gear titles. Also included on the American and European releases was The Ooze and Comix Zone which was previously only in the Japanese version of the Gamecube game.