As one of several lost installments of the Twisted Metal series, Apocalypse was to feature a post-apocalyptic environment dominated by Calypso's tournament. Characters would have included: * Mr. Grimm, as the leader of a nomadic road gang. * Shadow, as a post-apocalyptic mortician. * Thumper, the leader of the urbanized 'Zone' in which the remnants of society lived. * Outlaw and Crimson Fury, self imposed 'enforcers' obsessed with re-establishing government. * Sweet Tooth, as a town-to-town serial killer. * Darkside, an entity feared by the remnants of humanity as an Angel of Death. * Minion and Warthog, as headhunters for a gathering army force. * Axel, a wandering soul tortured by the past. * Hammerhead, driven by a pair of 'professional looters'.