Very nice models and animation. The environment is quite pretty.
I could not figure out where to go to get the action of the game started. As I was jumping around, trying to access a new area, I got stuck in the collision (near the flashing purple lights) and was unable to escape.
I also got no sound. If you implemented sound, it wasn't working for me. If not, remember that it really helps immersion. A little bit of work on sound goes a long way.