It looks pretty fun for some of the more interesting, elaborate level constructions, but I would appreciate a lot more if it had more elements, like enemies, power-ups and such. I guess that might overcomplicate it still having the logic to ensure stuff is still doable, with more things placed in it, both good and bad. Limited if it is only ever just structures, boxes of coins, loose coins out in the open, and the target one star, though, really. Hope the person adds more to it.