Congrats on making your first game! Not a bad game by any means. Let me point out some things that could be corrected for the next build:
1) Optimise the game; I got 20 fps and I have a 2060.
2) Maybe a main menu music would make it intriguing.
3)A tutorial perhaps, I couldn't understand the purple smoke.
Also, really liked the Blender Monkey just anonymously chilling XD.