New weapon platforms

I've been slowly working on creating new weapon platforms, revamping existing platforms, sound effects, etc. The base platforms are now done and I need to start working on the "special" platforms. These include things like repair platforms, a star fort, and an esoteric missile launcher.

Now that the basic platforms are done, I need to switch gears to planning out the levels and designing some new enemies. Creating interesting enemy behaviors will be both interesting and challenging. Who wants enemies that just move in a straight line? That's just boring. My initial thoughts are teleporting ships, stealth ships that uncloak once within strike range, ships that grab asteroids and fly them towards you. What do you think would make interesting enemies?

Here are videos of the new platforms