Interesting game! I liked having a moving platform you could take with you everywhere. It was fun and opened the door to interesting puzzles.
I did run into an issue on level 2 where I couldn't get one of the food pieces in the top of the tree, the squirrel couldn't fit and the bird couldn't get the squirrel any closer.
If you wanted to improve, I suggest having the squirrel be anchored or parented to the bird so that when the bird moves, the squirrel moves with the bird instead of having to switch back and forth between the two.
Overall, fun game!