XBox Hitman 2 Cheats, codes, hints, and tips:

All weapons:
When you're on the title screen press XBAXBXA followed by the left trigger

Silenced Ballers:
Obtain the Silent Assassin rank during 1 mission.

Cheat Codes: Entering the following cheats during gameplay will enable the cheats, but will not allow you to finish the game.

Punch mode: R-L-U-D-A-U-U
Gravity: R-L-U-D-A-L-L
Lethal charge: R-L-U-D-A-Black
God mode: R-L-U-D-A-R-L-Black-White
All weapons: R-L-U-D-A-U-X-A
Slow motion: R-L-U-D-A-U-L
Full heal: R-L-U-D-A-U-D

Sawed Off Shotgun:
Obtain the Silent Assassin rank during 2 missions.