Jersey Devil is a 3D platformer developed by Behaviour Interactive and released worldwide for the PlayStation and Windows. The titular protagonist is a Jersey Devil, although he has more characteristics of a bat. His primary mission is to stop Dr. Knarf and his army of mutated vegetables and prehistoric monsters. Jersey Devil uses his punch, jumping, and gliding abilities to defeat his enemies. In many areas of the game, it is necessary to collect all five letters of Knarf's name to proceed, adding a puzzle element to the gameplay.