Quick post to say that I released an update for both PewPew and PewPew 2, that includes a new game mode called Asteroids.
It's of course an homage to the classic 1979 game, albeit PewPew style: lots of shooting, and lots of enemies.
A few notes: To keep the retro mood going on, the ship's color is forced to white. The asteroids' shape is generated at run time: it was faster for me to write code than to draw manually them :-) Added bonus: they have a unique shape every time. Final note: I resisted the urge of making the asteroids rotate, to stay closer to the original. A game developer's life is tough.