Thank you for playing, and props for trying to finish all the waves! And actually, your jumps are higher when holding the jump key, though the difference is probably too small to notice, so will improve upon that. I note all the feedback from the comments and will use it on the afterjam version which will be improved (and include more music tracks!) and will actually include a bit of context on why the main character is actually a robot (like mentioned in the comment below)! It should come out immediately after the jam voting ends, so if you wanna finish the game, keep an eye on that!