Easiest way to beat survival that I found: Two lasers with homing and splitting. Two rockets with homing each, and acid and weaken between them. I didn't have to move my ship until wave 9-10. Didn't use a bomb until 15-16~
All story challenges completed (medium+ difficulty) – Using cheats will disable your ability to complete challenges and earn medals. //Maxed level, no slow.
Play the entire game through. Play the bonus mission, win. You'll be on Mission 11 with an Undefined amount of money to be won. Game begins and you can't successfully exit.
Don't know if this has been mentioned, but in the boss battle between myself and the female queen on her chair, I knocked her off the screen and she never came back... for a whole 4 minutes.