I spent most of yesterday refining the damage system and Destroyer. I also added a new enemy: Bomber. The Bomber will have homing missiles and shields and appears after the Destroyer.
The model still needs some polish, so I'll hold off any images or videos until it's rounded off.
I'm starting to really enjoy playing the game, even in its unfinished state. This is both a blessing (because it motivates me) and a curse (because I waste too much time playing instead of coding). Hopefully this is a good sign for the playability. My wife also enjoys playing, which is a step forward from Gravity Core!