Very nice 3D
I thought it was impossible to go 3D with flash, turns out i'm wrong. The game is quite fun, took me a while to figure out the controls so include a tutorial for that too. Gets a bit samey after a while however, add more elements to the gameplay. Also you should explain the fact that you can double jump, this took some time to figure out too.
This game got a high review because of the next-gen 3 dimensional graphics, not because of the gameplay but well done anyway. Aim to develop this new technology!!