Great concept. Not quite working for me in this early alpha state, but I look forward to seeing what it's like when completed. The main problem I had was that jumping was sluggish and unreliable. There's a noticeable delay between pressing the space bar and actually jumping, and sometimes the jump just never happens. I thought this might be a performance issue at first, but my frame rate was fine and turning graphics settings down didn't make a difference. It seemed like jumping would fail repeatedly at certain spots, and it wasn't always because of going over the edge before the jump kicked in. Unfortunately, sluggish jumping is a deal breaker for me when it comes to platforming. As I said, though, I realize this is an early alpha. Hopefully this will get ironed out in a future update.