Gave it a try. This might be a weird me thing, but the blurry cloud effect over the scenes really agitates my eyes. (My distance vision is a little blurry, so sometimes blurriness can bother me, but this is the first time I've really felt bothered by a games visuals. I doubt many other people will experience this.) Otherwise, I had fun playing around with it. You might state in the menu that it's possible to double jump because I don't think that got mentioned in game.