That's a lot of things you covered in 20 hours & it's just your 3rd game jam. Wow!!! Perfectly balanced game. The graphics is fantastic. The music track is really cool. I put it in the background & just chilled for a while.
10 out 5 for your effort, for your skills & for your amazing game.
You can really make this game bigger. It surely has potential.
Cheers man!