I'm able to get 5 different stages. I love the puzzley ones: one where you trace the lines (weave?), and the one where you build stuff with the lighter. But I'm unclear on what the point is in clearing them, they never seem to have skulls in them. I got thru the "jump down as the tower comes after you" one and I like that one once I figured out the jumpspark thing. The other two: sword the vines as light guy comes, and the rotating orbs over acid, are way too tough for me.
And I'm just finding no skulls in these (I've found one) and it's constantly repeating the same stages I've already completed. I've just been spamming restart to get new stages. What am I supposed to be doing here? What am I missing? I think there needs to be a way to set where you are going from the "gather" room.