I honestly don't see why people hate this so much >_> I actually found it quite hilarious. Yeah theres not much char development or explanation, but its a 30 min OVA what do you expect? Just the very though that this exists during the 80's is hilarious in itself. It might have been something really terrible if it was done during our time, but I think the 80's atmosphere (animation and music) adds a nice touch to this kind of story. Plus I believe this is the first anime ever to feature tentacles but no sex lol. Also the female gang member(Maki) was probably the most useful character in the anime, which goes against the general streotypes that females are useless in most earlier anime. Overall I thought it was a nice little piece of animation that people seem to hate for no reason.