Silent Scope Complete

Completion bonuses:
Successfully complete any game in the series to unlock various bonus options.

Continuous mission mode:
Successfully complete all EX missions to unlock continuous mission mode. You will only have one life to play all the missions.

Professional mode:
Successfully complete all EX missions to unlock professional mode. There will be no crosshairs displayed.

Alternate ending sequence:
Successfully complete the game in continuous mission mode.

Hint: Easier shots:
Go to the "Setting" menu, then "Scope Setting/Size" Adjust the scope size to 100. This makes everything slightly easier to shoot.
beetlejuice.