I liked it. It brought the spirit of BT into a new and interesting context; however, I have one small complaint. If you fire your secondary weapon the moment its cooldown time finishes (for the most efficient timing), the cooldown process will start over without firing the weapon. Then again, I've only noticed this on Bullet Storm, maybe it's unique to that ship.
Well, that was interesting. three of my sumos got stuck in a stack, so i could make all three of them grow at once, until the stack exploded, flinging my enormous sumos to all corners of the level. It was pretty much and auto-win.
the timer is absolutely unreasonable. you could have units about to fall off the screen that would boost your score enough to win, but it says mission failed. the timer sucks, if you make a sequel, get rid of it.