I think to improve the game, the tutorial does not count you as pressing the movement keys if you press W A S D, even if these keys still work (Or I got lucky and it only worked once, but it might be because I pressed the arrow keys). It only works if you specifically press the arrow keys. Otherwise the game looks like it does nothing. If the game were updated post jam this might be where to start.
After I figured out the problem I really liked the mechanics of the floating rocks and how they push you back, and how you need to avoud going too far back, nice job on the game!