So I had the same issue with the arrow keys - but I switched to WASD and had more success. I really love the aesthetic! the sprite work is fantastic and I love the crypt theme. The music was cool, but a little more modern than what I prefer for a Gameboy game. Despite using WASD for movement, I did still find the controls quite clunky, and some of the collisions were a little unclear. Great job though! I'd love to see it more fleshed out with a smoother control scheme.