Song is called Kernkraft 400 and its by Zombie Nation.
Hildebrandt, I really enjoyed the flash. I liked it mainly because all I've ever drawn with on the computer was MSPaint, lol, and I understand how time consuming it is. It gives this flash a very retro look, and it's a nice feeling pondering of the past sometimes.
The alien invaders were bad-ass looking, and seem to be inspired by Halos Elite Covenant race, the weapons and propulsion system were powered the familiar blue plasma energy as well. I don't mind this, but for flash reviewing purposes I need to give a -1 for slight unoriginality on that part. Last pet peve of mine is that (you?) turned into superman and destroyed the Alien mother ship right? Same negative point for that one too simply because I have a bias against superman. 4/5