Unlike the name of the game announces, you don't fight against crimes, but you try to commit as much of it as possible. For example you can play pickpocket, raid supermarkets and hotels, steal cars, raid banks, attack mail trains, and so on. As soon as you have a high standing in the criminal underworld, you are also able to sign on gangsters that join your gang. These gangsters then can be trained or equipped with weapons like machine guns. Your aim is to seize the power in the underworld. But it's very challenging, especially if you're playing with more than 2 players. This game is very addicting, if you don't mind the 2D graphics.