I really like the concept! The risk/reward of which moves you give up is interesting. Each room being possible with just the ability you give up but made easier by the others, it's great! The people saying the game is impossible if you start from the bottom and finish at the top are wrong. It's definitely harder without the double jump, but certainly not impossible. My main piece of critisism has already been mentioned, but it's definitely the controls. The inertia when moving can be very hard to compensate for at times as there are some tight spots. Also how you grab onto walls for a wall jump by walking into them - you should probably require the player to be jumping to grab onto a wall as this caught me out quite a few times when I was just meaning to jump over a wall instead of grabbing onto it. Overall though I really enjoyed the experience, this is a lot for just 48 hours!