I think this is a super cool idea. I love working with altered perspective kind of things like this. The idea of trying to simulate a single dimensional being is really interesting.
The first thing I think this game could benefit from is a little bit of color. Right now I think the hardest part of maneuvering the maze is not that it is 2D but that it is monocolor. I think it would be much more interesting if the further things were they might be a slightly different color. Additionally, this is a slightly strange example of 2D organisms I think. It might be more interesting if things were moving or perhaps if there was an element of gravity.