Unfortunately, my copy of the film (the Region 2 version) seemed to have much of the gory goodness cut out, resulting in a somewhat fragmented affair. Some of the kill scenes are quite confusing, since it'll skip from (a) Toxie entering a room to (c) victim dead. It's really worth the extra effort that finding an uncut copy entails, since The Toxic Avenger needs to be seen in its full glory to be fully appreciated.
Even if you're not usually a fan of Troma productions, The Toxic Avenger really is worth seeking out. Conversationally, the novelisation is a pretty good read too.... even better than the film it's based on, in fact.