Taking over the world is a lot like waking up in the morning. Sometimes its unpleasant, but it must be done.
get to lvl 9
Finish all the levels... Oh, but that's JUST the levels!
Finish two thirds of the levels.
Finish one third of the levels.
Use a nuke
Launch 50 miles (264,000ft)
Launch 25 miles (132,000ft)
Get caught by a UFO
Play over an hour
Blow up a jeep