The anime of this was pretty fucking awesome. Or at least it was ten-twelve years ago. I'm not going back and rewatching it now to find out if it still stands up, though.
I still have a VHS copy of Zeiram 2 around here somewhere, the one where live-action Iria finds herself trapped in a sort of zone or pocket dimension or some such crap (i.e. a bunch of old warehouses) with two dorks whose sole function is stumble around having "d'oh!" moments and of course the new and improved Zeiram.
I have no idea who thegreatandmightywhoopass is but I already like her(?).
I actually saw this and Zeiram 2 before watching the (even better) anime (WHICH STILL HOLDS UP HOOPER BELIEVE IN MIRACLES). One of the more underrated Japanese sci-fi action franchises. Don't expect a revolution but expect a good evening of entertainment.