You're in the homework dimension. The color of your body is blue, and your name is Penc. You also have a pencil where you can draw blocks to get up to higher places and over gaps. You can also stab your pencil into the wall. You're more confident and outgoing. Your friend Undo is red, and he has an eraser. He can bounce up with his eraser, throw his eraser to erase the blocks that you draw, or he can just erase one block in front of him. Undo is more shy and thoughtful.