This movie is largely recommended for fans of either Kartheiser or Patrick Stewart, and it's surprising that there hasn't been a DVD release (that I've found). Both actors have a huge amount of screen time, and the movie itself looks great visually.
Stewart really camps it up, and appears to have had fun playing "Rafe" as an over-the-top villain. Sometimes the performance goes a little too over, though. Kartheiser did the best he could with the stereotyped "bad boy" image. I thought at first he seemed a little old for the role, but as the movie progressed I couldn't see anyone else in the part.
The movie has been compared to "Toy Soldiers", and also dubbed "Die Hard, Jr." While these elements do seem strong in the movie (plus the need for things to go KABOOM!), it doesn't seem to ruin the fun. Just check reality at the door and not worry about the details.
Could it have been better? Yes. Is it unwatchable? No. Will the adults like it? Maybe (fans of anyone in it especially).
Did I mention I really want this on DVD? Please!