I have a new video here
I have mines which spew bullets. Tank projectiles which have particle emitter smoke trails behind them, and a block of 5 mines at the top of the page which spew about 1000 bullets from off screen. Oh, and check out the explosions! I'm using an explosion generator I found here
which was written by Cliff Harris, the guy who wrote Gratuitous Space Battles.
As a proof of concept project I think it's starting to come together.
And I have to say, after all the stress of building REST based stateless interfaces for legal matter management systems all day at work, this is vastly more fun.