Type in "dynomite" anytime during flight. Then hit the buttons below:
Ctrl+I = invincibility
Ctrl+C = turn off collisions
Ctrl+F12 = destroy the targeted ship or subtarget.
Extra Ships:
While in the simulator on the Midway type "alswantsmoreships" before picking your mission. Then you can fly the alien ships and two Kilrathi ships.
Enemy Destruction
Type "dynomite" in the cockpit, then use ctrl-f12 to kill targeted enemy or cap ship part.