Momentum Missile Mayhem 2 is one of my favorite Flash games too, narf, hmm, probably number one.
Also
Achilles and
a few others as well as just
Kongregate in general (do you have an account, Narf?). I tire of most Flash games pretty quickly, but having a ton of them and frequent new arrivals is pretty interesting. Then again, I could stand to go give more of my old untried game pile more of a chance. Dominions 3 tends to dominate my game time these days, er, years.