Alright, finally done: http://www.ludumdare.com/compo/ludum-dare-23/?action=preview&uid=12895
I’m pretty proud of what I managed to pull together for this, especially considering I wasn’t able to work on this for the first day of the compo.
I decided to experiment with a progression system where you lose power over time rather than gain it. You start the game with two shields, one for each color of enemy projectile. You have to give up these shields in order to progress in the game.
Anyway, I had a great time making this, and I’ll probably expand on it post-compo.