I actually would say the opposite of the guy below me. I'd prefer it just to have been a gritty western, and the whole monster alien thing came across as a little bit lame to me.
Though I guess it's an adaptation of a manga which is about monsters then I can't really pass judgement on that.
Excellent piece of work, though - one of the best animated things I've seen on Newgrounds. When's the full thing coming out?