I loved the concept for this game! It was a very unique and fun experience having to solve platforming challenges on 2 planes. And with a large set of levels to traverse, it was great to be able to explore this concept in a wide variety of ways.
There are a few things I would try to improve, though. For one, the text did not contrast very well color-wise with the background, and so it was sometimes difficult to read. Also, the light elements that the characters couldn't touch looked a little too much like the platforms that they can touch, which made it difficult at first to discern what was making me lose those levels.
But by and large, this was a blast to play. Great job; you should be proud!