Ok, I'm not cut out for this, it is indeed friggin' hard. Your game is really well-made and it plays perfectly. The idea is also well thought-through. However, the sheer difficulty and the lack of checkpoints is really putting me off. Everytime I made it through a pixel-perfect jump I felt happy, but then having to do it again and again and again feels unnecessarily frustrating.
But, anyway, well done on the game itself!