I like this concept, it took me a bit to figure out what was going on but it was fun to figure out. Like part of the puzzle was figuring out how to play, I like that!
This is gonna sound weird but I had a hard time figuring out what order the movements were going to happen in. Like it's obviously top to bottom but my brain kept interpreting them backwards. Not really sure how to fix that-- or if it's even a problem in the first place and not just my stupid brain.
Maybe instead of arrows you could have a little grid with a tiny representation of the player on it and animate it to show the the movement the player is going to make? I don't know how elaborate the movements get so idk how feasible that is.
When I died some of the tiles got a little gray dot in the middle while others didn't and I never figured out what that meant.
The menus feel really slick and polished, but the one setting I was looking for was a native "fullscreen" (like without the taskbar etc).
Also one last nitpick: Screen shake is good for when you hit walls/die but a screen shake on every move feels a bit excessive.