I appreciate that the skeletons have the decency to explode upon death, too many contemporary video game enemies lack that common courtesy!
That said I am a bit in the same boat as XCVG, the game was almost too good, so I think I'm going to abstain from rating it since I really don't know what's appropriate as a rating in that case. Which, again, doesn't mean I disliked it, there was a lot to like and I had fun!
I loved the Skellies' animation when they were not yet aggro'd as well as their sounds. The whole game reminded me of Duke Nukem, but my main disappointment (because of that fact) was that you can't kick while punching while running, all at the same time. (It also made me expect you could somehow replenish health from the water coolers) Levels were a bit on the big side, but I didn't have many stretches of not encountering anything!
I did like that you can reach negative HP when I tested what happens upon death after my playthrough, made me think of Daggerfall!