OK, it's like this - the bad guys have taken over the world, imprisoned loads of Californian beach babes, stamped out rock and roll and, worst of all, kidnapped Aerosmith.

Armed with a load of, er, flying CDs, liberate the babes, the tunes and the good ol' boys. In real terms, this involves keeping your finger pressed down on the fire button and directing your fire towards anything on the screen that moves.

There is next to no skill required - the sprites are incredibly repetitive, predictable and very blocky. Oh, and there are a couple of Aerosmith's best-known tunes in the soundtrack. Which doesn't help.

Overall 34%
A real endurance test in more ways than one. This is absolutely dire.