Give me a break. You couldn't honestly tell me at some point in the movie that you didn't think, "Ok, this is getting a little rediculous."
It's fine that they took creative liberties with physics, gravity, etc... But at least keep it within the realm of possibility. Maybe a couple of those crazy falls, flips, swings, with a perfect dismount could've kept things interesting, but when everyone can do it without hesitation, it get's a little repetative and kills whatever little excitement was built up.