There is one level, that once you get stuck, you can't get out. The level had the dude starting top-right, the door bottom-left, 2 movable blocks, and 4 pathways across the field. You can get stuck in the "dip" just above the doorway. Once you are there, there's no way out. I hope this makes sense. A glitch too - once there, I went left and right, but somehow I ended up in the ground unable to move anywhere. Definitely needs a reset.