An optional 18+ patch can be downloaded for the game that enables two uncensored sex scenes to the game, both of which occur close to the end of the game. It also adds nude sprites to one scene.
Goofball Mode an extra edition to the game races through the story in two minutes and adds a lot of fourth wall breaking jokes.
Extreme difficulty mode involves an unskippable timer popping up that forces you to play the game in real time whenever the characters are driving a long distance or sleeping.