Silent Scope 2 Cheats
Exchange five seconds for half of a life
Press start while playing the game and enter Circle, X, Right, Let, Right, Left, Down, Down, Up, Up. You should hear a sound.
Exchange 1/2 a life for five seconds of time
Do the same as above, except enter Up, Up, Down, Down Left, Right, Left, Right, X, Circle. You'll hear a sound.