Thanks for your kind words and I'm glad you enjoyed playing it!
If you select a barren planet you get zero points for that round but you're right that if you spam the triggers really quickly that penalty might not be enough. I was worried too many penalties would make the game too hard but I agree it could definitely be improved.
I was planning on improving the graphics will better textures, variation, and some basic animations but I ran out of time during the game jam. I might go back and improve them outside of the game jam if I have time on another weekend.