The visuals are really great, same goes for the music and sound fx. Feels very unique.
My controller didn't really jive with the game unfortunately (gullikit pro2 if you want to know... i.e. switch controller). It worked for a bit, then stopped working... I couldn't f.e. use the controller to navigate the menu. I made it to level 3 with my keyboard... that is quite something because I play video games with my controller usually.
There have been some glitches for me as well, like getting stuck on a black block(?) before falling down. The art and concept are a lot of fun though and the spreading darkness really keeps you on your toes!