Fun times!
Great game :D
The end boss was kinda easy though. If you just keep him EMP'd he only gets a few shots off.
I'd love to have challenge stages where you are given a set juggernaut and have to complete some task. (i.e. kill 100 rocket launcher inmates with just proximity mines)
Also a rampage mode would be great. Wave after wave of harder and harder guys, maybe stopping to upgrade every 5 or ten waves.