Really fun mechanics! I loved the physics on how Tux walks, slides and jumps!
The hitboxes for the trampolines are a bit exageraeted, though: there is one at the bottom of the first pit that should allow you to pass by its side, the one with a short plataform above, that just keeps you jumping there - you have to go back and around.
I'd love to play a dozen levels or more of this.
It is a pity that it is too short.
Still, great concept. Good work.