This game is fantastic, extremely hard and fun, I love it! I had to stop at the beginning of The Hall because it was sucking up all my time but I'm 100% giving it a download for playing later. I really really like the new things slowly introduced in each level and the movement feels very good to me. The only thing I disliked was the spikes seemed to have some collision on the sides so if you jump parallel to them you would die, but if that's intentional then keep it in! Very enjoyable game, keep making stuff :)