Sonic and Knuckles Sonic 3
The video game Sega designers always imagined when Sonic 3 was first published is Sonic and Knuckles alongside Sonic 3. This game is jam-packed with 14 zones, 3 playable characters, the Super Emerald missions, and even Sonic, Tails, and Knuckles' Hyper/Super transformations.
Sonic S Factor
Play as Sonia and Silver as they attempt to fend off Eggman Nega and save the inhabitants of Mobius. Each character has their own special moves. For each character's move list, look underneath the game.
Sonic Tails Double Trouble
This fantastic Sonic 1 rom hack lets you play as Sonic or Tails and features entirely new levels and music! average level of difficulty
Sonic Epoch
This entertaining Sonic the Hedgehog game is actually a gameboy advance hack and is set in the SatAM universe.
Sonic Stardust Gear
A complete Sonic 1 rom hack with brand-new levels, music, and six new, difficult worlds to explore
Metal Sonic 2
There are three alternative play styles available for Metal Sonic, who takes the place of Sonic as a playable character.