It is a pretty challenging game. It took me awhile to figure out the twist and even once I knew it it takes a surprising amount of mental work to eliminate and figure out the right path. I like the aesthetic quite a bit too. You could port this to mobile as a fun time waster haha.
I can't really think of any ways to further improve the simple concept other than a better music and more visual effects. It's pretty good for what it is already. I guess it's not colorblind friendly but oh well.