Ayy nice! Creative idea that's executed well, good puzzles, good length, neat graphics, really nice music. Only main issue to me is the controls, though more of a personal thing. To me using A and D to move and Space to jump just felt not great in a 2D game and made me mess up jumps more than I wanted. I would have gone for arrow keys to move, Z to jump, X to pick up lantern and C to turn light on and off. That said that's just me so might vary from person to person. Also, in that level where you have to jump across the waterfalls, the blocks looked like they were part of the background and i figured out the way forward entirely by accident. Otherwise, this is a winner in my book!