Fun game. I like how you have to figure out which Dino has to press which switch or climb which ladder to make everything work properly. Had a little trouble getting Big Dino past the spears, at first, until I realized that he could jump over them. If they walk across the top of a ladder, they have a tendency to get stuck on a little ledge or lip...that got Big Dino killed a few times.
Physics are good, and the music is lively. Big Dino is a bit sluggish, but he manages. There were times when i had some problem getting one to jump on to another. Just minor annoyances. Great game, otherwise. I rated it a 4 instead of a 5 because of the minor annoyances.