As you can see in the title and summary, instead of lowering the quality of the backgrounds a bit, we've reduced the size of the demo version by nearly 1GB.
This game uses a 2.5D representation, with characters drawn in 2D and backgrounds drawn in 3D, but since the skyboxes in the backgrounds alone were taking up a lot of space, we took the plunge and removed the skyboxes and replaced them with sprites.
This reduced the space by nearly 1GB and load times by a lot.
Try the smarter in here!