Ok this is amazing, really beautiful art, and a really cool idea; I'd love to see people speedrunning it etc!
However for me, down arrow and left arrow do the exact same thing, while up arrow and right arrow are opposites, which isn't how the tutorial made it sound! Also I feel like having the proper game start when you roll off the menu island has downsides; I rolled off it accidentally when I had no idea what I was doing lol, and then the full game started and I was like 'oh no!'