Sonic ERaZor

Sonic ERaZor is a ROM hack of Sonic the Hedgehog created by Selbi. This hack is unlike many others, featuring a (bizarre) in-game story line and ridiculous challenges/mechanics, as well a ton of cutscenes, story screens, and easter eggs. Furthermore, while not originally intended as such, the hack is often summarized as "What if Michael Bay directed Sonic 1?" due to its rampant use of explosions and focus on action.

The name ERaZor, with its upper- and lowercase letters, is a mix of the word eraser and the German word Scherz (meaning "joke" in English). Despite the naming similarities, it has nothing to do with Erazor Djinn or Sonic Eraser.

When first released back in early 2010, Selbi stated that this hack had no goal whatsoever, and any ideas he came up with just went in. Today's releases have a lot more structure and thought-out gameplay elements. The difficulty has been steadily balanced with each new release, mostly due to negative feedback regarding the frustrating game design of the earlier ones. However, it deliberately remains tough and has never abandoned its roots as a difficult game.

In 2024, the hack received its first update in over eight years with the release of the Seventh Public Release, which introduced Casual/Frantic Mode (a unique difficulty selection specifically built around ERaZor's identity).