Sonic.exe is an error in creation that has a great fanaticism for the world of Sonic, as it was the first thing he saw, and from which he began to create his worlds. Though often called an error, Sonic.exe rejects this term—upon realizing that all other Sonic.exe variants originated from him, he considers the correct designation to be Darkness Genesis, and his true purpose is to claim his own reality and evolve, invading other worlds and taking souls to achieve it