Pressed on from Level 7-ish all the way up to Level 20 today. I’m down to three lives (and not a lot of energy), and it’s actually getting quite hard. I’m pretty sure I’ve missed a ship piece on Level 17 too, so I’ll have to drop back down and check at some point.
I only have two ship pieces left, though. Can’t remember how many levels there are – 26? 27?