Zack finds himself in a post-apocalyptic world where he has to fight against a multitude of evil robots on his own. The latter were built by an evil adversary and Zack is the only hope to restore order now. Fortunately, the robots come in three colours, which can also be found on the controller buttons. If you are sufficiently close to them, a push of a button is enough to hit the next enemy with your fist. The attackable radius increases, if you keep the respective button pressed. Sounds easy? It gets more complicated: With the three different colours, you'll find more demanding combo passages that are similar to the keyboard combinations of Guitar Hero. Once you have finally fought your way through one of the levels, you’ll end up at one of three different exits that differ in height: If you have managed to complete the difficult passages of the previous level easily, you can look forward to a more challenging time in the next level. The game mechanics automatically adapt the game to your skill level.