The first games I made when I started programming a few years ago all included a pill as a player character and a grey background, so your game scared me off at first.
I have to say that, given how simple it is, I still had a lot of fun. I don't know if it is because I tried finding bugs, or because of the simplicity, but I had fun!
I saw through your player script in the first few seconds, if you're ever wondering why you should not use this script at all, please look at this: https://gyazo.com/8cc1805b8f791341bbc32917667f4796
The music is chill, the level design is well done, all in all a good game :)