The art style is gorgeous. The music gets repetitive, but there's certain places where that shines too. The portal mechanic is neat, though you don't get to pick which one you get even if you "unlock" several. But the difficulty just spikes hard at places. I think I reached my limit in the third world. I can't get past an obstacle. The hidden lost villagers that you can optionally find are a pita to get to as well, so I simply started ignoring them. For someone who enjoys tough challenging platformers, this game may just be right up your alley. I don't know if I can finish this game. I wish I could. One annoying bug - if you fall, the game can think that that counts as a jump and you can't double jump out of it.