AHX1 Cheats

Type VIPER on the logon screen to access all the missions.
While in a mission press:
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Alt+I - Invulnerable
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)