Demolition Mission - The Alleykat Space Racer was specifically designed for use with the Commodore 128 and had special features incorporated into the game for the C128. Demolition Mission automatically will detect a C128 and use the double speed CPU to provide extra bullets and longer Katerkillers." (Katerkillers being the caterpillar-like beings in the game) Alleykat is a vertically-scrolling racer with elements of a shoot-em up game. The player, a speeder pilot, strives to become the Alleykat Champion by competing in eight space stadiums scattered around the galaxy. Different races like demolition derbies, time-trials, endurance epics and others feature all kinds of obstacles like rocks, pillars, bridges and hard walls, and several types of enemies race along. The game also features a cooperative two-player-mode.