One of Alan Moore's fairly early works, and among them only really bettered by The Ballad of Halo Jones and V for Vendetta. The story of two alien delinquents with a destruction addiction is just pure, ludicrous FUN, and absolutely hilarious. Do yourself a favour and buy this.
The only reason it doesn't get the full five stars is because some of the reproduction is really not as good as it could be, which is a shame (and there's really no excuse, given that earlier editions were fine) and it all ends far too soon.