Zach

Zach is a character in Numberstairs.

Appearence
He is a green line going forward-backward, or away. He is best friends with Xavier and Yolanda. Together the three of them like cubes and rectangular prisms because they are 3D.

Facts
They can only make things with straight sides. They need Pie's help to make something such as an orange or the Earth. How they do that is Pie gets on top of them (in the middle) and rolls around (staying in the middle) so much that they become curved.