This is extremely buggy. As soon as I got to the gnome ship, the game started drawing the hitboxes over the graphics. This persisted for the rest of the game.
Once I got to the cave of color or whatever, I noticed random tiles placed inside walls. Double-wide signs, slopes, and platforms were just jammed arbitrarily into walls.
Finally, all letters were randomly colored, making it difficult to read and unpleasant to look at.
I actually thought all these weird glitches were intentional, but if they are I don't have the patience to wade through them to reach the conclusion where they're explained. If not, fix your game.