Nice game but that last gun is way too much powerfull. After getting it i don't even see the point of building an emp, you can basically stand there forever killing those machines over and over with no damage to the door.
There is a bug if the last machine destroys the gate and you manage to kill it before the game over screen. When you press continue, you'll be on the next stage, with the upgrade menu opened but the wave allready launched. And you'll have none of the metal collected during the wave you died/beat.
Btw, good reward for beating the game. A ton of chicks is exactly what i was expecting when i launched it.
 "Obliterate Everything")
 "Effing Machines")
 "Rail Pioneer")