This is a fun little game, I like the art style a lot. It took me a minute to figure out I was supposed to touch the sign to beat the level. I had a good time playing thru all the levels once I figured it out tho.
I also ran into a bug where on the first level, if you get eaten by a snake, and then press the Z key while it's on the screen that says you were eaten by a snake, it gets into a loop of trying to load nil for the level.
Great job on this, it's cool and very impressive for a first game jam!