Arrow keys to move, there's a gimmick where the geometry is non-euclidean, meaning that there are no seams to the map, so basically, the map is pretty much endless, because you end up where you started if you try to walk into the void. I'll try to add another gimmick where a short tunnel takes a long time to traverse through it, and a long tunnel that takes a short time to traverse through.
The gameplay was lightly inspired by Super Meat Boy.