Really good game.
It was a lot of fun to play, the music got a little annoying after a while though.
Also, I was thinking that you could create additional scenarios. Lets say you save so many penguins, now you have to get the remaining penguins past another obsticle or set of obsticles for the next level(s).
Just a thought.
I hope to see more games like this from you, keep it up :)