Instead of using the arrow keys for movement, use the buttons shown. The up/down arrow is a toggle button, so when you click it, it switches direction. If you like this, don’t ❤️&⭐️ my project, ❤️&⭐️ @surlo’s.
Full credit to @surlo, I’m just trying to let more people play their awesome game. Very quick remake, the buttons do hide some of the key features. Arrow keys do not work, if you have a keyboard, please go to the main version.