Sonic.EXE is a fan-made game based on the popular creepypasta of the same name. The game's objective is to survive Sonic.EXE's attacks and reach the end of each level.
The game has three playable characters: Tails, Knuckles, and Dr. Robotnik. Each character has its own story and levels to complete. You can choose which character to play at the start of the game.
However, this is easier said than done, as Sonic.EXE will try to stop you with various traps, obstacles, and enemies. Some levels also have hidden secrets and Easter eggs that you can discover.