This ROM hack also features many minor changes that include change in sound effects, minor level layout edits, and much more. The game's overall aura and theme were also changed to be more sinister. In this hack, the sky is turned to crimson and water into blood. The game's main character, Sonic, was replaced by Sonic Exe sprite, while the side character Tails was also replaced by a much evil counterpart. The traditional sidescrolling running platformer gameplay remains the same, but this hack features new sprites and graphics. The game features similar gameplay to the original Sonic game. The player will take control of the evil Sonic and will have the evil Tails follow the player around. This game is a sequel to the first hack and features the return of the evil incarnate Sonic Exe, as well as the soul-deprived Tails who became evil as well. Sonic 2 EXE is a ROM hack of Sonic the Hedgehog 2 and is a continuation of the very first Sonic EXE hack. Dive into the darkness and embrace your evil side as you play as the evil Sonic EXE once again in this SEGA ROM hack - Sonic 2 EXE! Bring your sidekick and try to collect as many golden rings as you can and complete one act after another to reach and defeat Dr.