Sooo... 0D, basically just a solid color. Like with how a 1st person 2D game is 1D, a 1st person 1D game is 0D. And since there is only one direction you can move in, you have to press space to teleport to the other side of the obstacle. There is a 1D third person section at the top to make it easier to understand. Don't teleport through the edge.
