Twisted Metal 4 is the fourth installment in the Twisted Metal series and the second and last installment to be developed by 989 Studios. The game's plot centers on Sweet Tooth, the long-time mascot of the titular Twisted Metal competition, overthrowing Calypso, the mysterious organizer of the competition, in a coup d'état. He then takes over the mantle of granting the winner of the competition a single wish, regardless of price, size or even reality.