Professional Challenge mode:
Hold Trigger at the mode selection screen and highlight "Training" or "Arcade".
Keep Trigger held and press Start(4). The sound of a gun will confirm correct
code entry. The aiming ring and enemy markers will be disabled in this mode.
Night Vision Challenge mode:
Hold Trigger at the mode selection screen and highlight "Training" or "Arcade".
Keep Trigger held and press Start(5). The sound of a gun will confirm correct
code entry. The game will begin at night and require the Night Vision scope.
Professional Night Vision Challenge mode:
Hold Trigger at the mode selection screen and highlight "Training" or "Arcade".
Keep Trigger held and press Start(6). The sound of a gun will confirm correct
code entry. The game will begin at night, with no aiming ring or enemy markers.
100 Challenge mode:
Successfully complete all nine Outdoor Shooting Range challenges to unlock 100
Challenge Mode.
Extra options:
Successfully complete the game under any difficulty setting to unlock a real
time window and up to 8 health in the options menu. Alternately, accumulate over
two hours of game play.
Successfully complete the game more that twice under any difficulty level to
unlock infinite credits in the credit section of the options menu and +30 in the
time limit section. Alternately, accumulate over three hours of game play to
unlock the +30 time limit and over five hours for the infinite credits.
