Solved by upgrading pygame to 2.1.2
I'm glad you managed to fix it! Enjoy the game ;)
The game is great, but surprisingly thing that stands out the most are planets in the background. How did you do that?
I found out: it is just animated sprite, but the animation is that good, that I fought it was procedural generated - still great game.
Actually, it is procedurally generated, but not by me. Check out this incredible generator: https://deep-fold.itch.io/pixel-planet-generator
