It seems that you went all out on the graphics, but neglected a bit on the gameplay :/
I'll admit, the game looks awesome. You've done a great job on the graphics. Maybe some more sound effects (like jumping) and it would have been a killer!
Sadly, the controls feel weird and unfinished. I've heard that you didn't finish some of the spline paths, and it shows in some parts of it. I got stuck at the first little tower on my first run and on my second one, the character wanted to walk in a wall but not back out of it. The game also encourages you to just walk in one direction... and that's it, you win. Plus, if you hold sprint for too long, the character goes back to walking (just read that this was intended in one of you comments to someone else. I guess it felt to me more like a bug than anything else.)
I guess you were just too ambitious with your project. That was my issue too at first with some of my games. And that's especially true when you are doing a game jam. My lesson: Sometimes, simple ideas are the best ones. They are relatively quick to make, yet they make you want to play again.
Still, congratulations on having tried, at least! Making a game like this in 7 days and submitting 3 minutes before the deadline is certainly not an easy task, even if it is incomplete!
If you've got some spare time, come check out and rate my entry! It has 7 different endings and a hilarious narrator (and a bird main character!)