Night Vision Challenge Mode:

At the mode selection screen hold Trigger and highlight “Training” or “Arcade”.

Keep Trigger held and press Start 5 times. 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:

At the mode selection screen hold Trigger and highlight “Training” or “Arcade”.

Keep Trigger held and press Start 6 times. The sound of a gun will confirm

correct code entry. The game will begin at night, with no aiming ring or enemy

markers.

Professional Challenge Mode:

At the mode selection screen hold Trigger and highlight “Training” or “Arcade”.

Keep Trigger held and press Start 4 times. The sound of a gun will confirm

correct code entry. The aiming ring and enemy markers will be disabled in

this mode.

Extra Options:

Beat 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.

Beat the game more than 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..

Hints

Use The Mouse:

The mouse peripheral for the Sega Dreamcast works in Silent Scope, though

there isn’t any indication of this on the box. Here’s how, just plug

in your DC’s mouse into any controller port (I have mine in #4) and fire

away! Button #1 is fire, button #2 is to add/remove your targeting rectile

and button

#3 or the thumb button is to pause, while the wheel of the mouse is only

good for menu scrolling.

Extra Life:

At the start of story mode in the second wave, a pool will appear randomly

on one of the smaller buildings. Use your scope to zoom in on the pool and

look for a woman in a bikini. If done correctly, instead of your regular

scope it will be a pinkish red heart and you will gain an extra life. This

also can be done on the highway level by looking for a pink car.

The Disappearing Act:

Start on other side of a building-when your about to start the arcade game

hold Left on the D-pad and if you did it right you’ll start on the other

side where the bad guys are facing the other way so they can’t see you

GameShark Codes

Infinite Credits   451A1E0A00000005
 
Infinite Health    60CB6B8C000000F0
 
Infinite Time      759DD3CC0000003B
 
Low Overall Time   EC67D85A00000000
 
Never Reload       4D121F0400000005
 
High Score         DC68431205F5E0FF
 
Max Hits (this is for training mode)586778C4000003E7
     

Thanks to Revolution readers Max Barraco and Luis Arroyo!