AHX1 (PC)

Type Viper on the logon screen to access all the missions. While in a
mission press:
Alt+I Invulnerable AHX-1
Alt+L Reload weapons
Alt+R Fix damage
Alt+A Show all targets on radar
Alt+X Crash Viper
Alt+Q Change flight model real/arcade
Alt+K Stop smoke trails
Alt+J Display the render rate (FPS)