So I've added some enemies, and started thinking about what the HUD might look like. Also flipped the orientation and think I like it!
The physics right now is a bit weird (everything interacts with everything else with), so I'm planning on reducing the amount of interaction between things.
Enemies so far:
Circular things randomly move along, opening up every now and then.
Purple fanged things eat the green crystals you worked so hard to blast out of the asteroids
Squid things dart after you with they pointy heads
The gray spiky things follow you and shoot. Look out!
Right now, everything is shown all jumbled, but only some of these enemies will be present at any given time. As you get more and more crystals, different baddies will show up to harass/hamper your crystal extraction. The next step is to implement a timer to control how many asteroids fly across the screen, as well as enemies!
Am thinking powerups for weapons and such will be gained through space debris, while your shields and fuel will be gained through blasting the bad guys (central hex in the HUD tracks both right now, the outer ring is shielding, the inner is your fuel)