I feel that the tutorial level is already putting things to the limits. Like, where it says "keep pressing space to climb on ledges" that only *just* works, there is very little leeway. (For me at least. You can blame it on my bad skills :-) )
I was able to get to the point where you get different colored orbs, but not beyond that. Which is a pity, because now I do not get to see the rest of the game.