I did not really understand how to exit full screen, and I don't think I completed things in the intended way. Overall, I thought it was really fun, and think it has a lot of potential to make an interesting platformer. I found the controls a little clunky and some of puzzles pretty weird at first, but it was very cool to play. I'd like to see a more developed version! Also, the graphics are really nice, reminds me of Celeste.