Quite original, I like it. The level design could be better suited for the inability to stop moving. It was hard to get some jumps in time without hitting space too fast making myself turn around. Also, I'd appreciate more checkpoints because falling off and sending you all the way back to the start was quite annoying especially when on the one telling you to do a small jump to turn around and I had not read it fast enough to try it so I had to walk all the way back to finish reading it, then falling off one more time till I was finally able to do it.
All in all still great, just the level design needs some work for it to fit this games gimmick.