I don’t know if it’s just me, but when I jump onto the wall, I bounce off it – not upwards, but sideways. Maybe I’m doing something wrong. It takes me a dozen or so attempts before I manage to jump up.
(That’s definitely the case in level 1)
Apart from that, I really enjoyed the game.
EDIT:
I took a closer look. I’m not sure if it’s a bug in the game, but the thing is, to jump onto the wall, you have to hold down the space bar and then press it a second time. Maybe it’s because the timing isn’t quite right, but you have to perform all these actions in perfect sync. It’s a bit counterintuitive, and the on-screen text (hint) doesn’t explain it very well either. Perhaps a minor tweak would sort it out. (Or maybe I just couldn’t get the hang of it.)
