Here's how to get it working for mac!
1. Download the .zip file from the GitHub page. (Code > Download ZIP)
2. Open the zip file.
3. Open folder in an IDE (I used visual studio code)
4. Install python 3.6.8 and pygame if you don't have it.
5. In main.py from lines 4-9, remove the . from each line (ex.
from .player import Player --> from player import Player)
6. In background.py, add the line "import colorsys"
Enjoy!