I liked it
Here's my ratings
Graphics (Even though they aren't that important to me): 10 since it's 3D and I don't see a lot of that in a flash.
Game play: I'll give you a 7 for gameplay because I liked the concept, but I was expecting a little more. I was thinking that you could also climb trees and glide from branch to branch. Throw that in, with perhaps a new enemy that attacks you if you go into the trees to avoid from having the game being too easy. You could also throw in a few allies like gophers who can dig tunnels that take you to another point on the map or something. You can also keep the porcupine for the ground. Maybe a few hazards too to keep players on their toes like wasp nest in the trees or pine cones that might fall down on you if you're on the ground. Maybe throw in a few tricks you could possibly pull off in the air if you haven't put those in in this game. (I didn't take a look at the secrets) I'll end this part though to avoid going into a rant.
Sound: I liked some of the sound effects like the one where you collect a butterfly because it reminded me of a similar sound effect in Mabinogi. The lack of music though (even though I hate most music) admittedly left the game somewhat bland although the environmental sounds did help somewhat.
Since that's all I feel like rating I will throw in some final thoughts that I think are worth considering. The hearts should recover much more than they do. Since there's only one at a time and I would end up spending WAY too much time running around like a squirrel trying to get my health back up to par. Especially since the baddie hits way more than you can recover in just a few hearts. Also, Time needs to recover more as well since the time drains continuously and By the time I gather several clocks it didn't make much of a change anyway. Camera control should also be considered, you can keep the move by mouse feature then allow the camera to be changed with arrows. Then The player can choose the best angle for the jump they want to make. Other than that, I can't really think of much more to say other than keep up the good work.
Overall rating: 8 stars