Having to stop controlling one character to control the other is a really cool idea that lead to very clutch moments while trying to escape. However I think the jumping is way too floaty. The best option I found was to fling one square across the screen and hope it landed on something, then do the same with the other. This type of gameplay was fun but frustrating when the squares didn't land on anything. If you modified that and polished it up a bit more I think you would have a great game on your hands.
Nice work!