This is a version of the Shell game where a ball is hidden in one of the cups and the cups move around. After the cups move around, you have to choose the cup with the ball under it.
This game is obscure almost every sense. The directions are vague, the ways to move on are unknown, and you don't even know how to move! Get to the end and there'll be a special surprise. (also I can't upload the game files for some reason...