I'm not joining this jam... but I had this idea for a small sized game.
There is this func in godot: _draw(). Maybe someone could make a game with Asteroids graphics. Try to not make a copy of Asteroids, but a game that has this art style. Here is a link to the Godot docs about custom drawing in 2D: https://docs.godotengine.org/en/3.1/tutorials/2d/custom_drawing_in_2d.html