Cool idea! I think it can be a little unforgiving, because the levels are so big, making a small error kicks you back to the very beginning, and it can be tedious to climb your way back. I think smaller and more focused levels would work a little better. Checkpoints might help that too.
Gathering animals into a team of different movements creates some interesting opportunities. Bouncing around on 3 frogs is pretty fun and funny!
Good job!