Hitman 2 Cheats
Input these codes in the game, not paused:

God Mode - R,L,Up,Down,A,R,L,Black, White
All Weapons - R,L,Up,Down,A,Up,X,A
Slomotion - R,L,Up,Down,A,Up,L
Full Heal - R,L,Up,Down,A,Up,Down
Punch Mode - R,L,Up,Down,A,Up,Up
Gravity - R,L,Up,Down,A,L,L
Lethal Charge - R,L,Up,Down,A,Black,Black
Bomb Mode - R,L,Up,Down,A,Up,White
Megaforce - R,L,Up,Down,A,R,R (restart level to remove effects)
Nailgun Mode *pins people to walls* - R,L,Up,Down,A,White, White