Cheat mode:
Press [F2] to display the console window, then type one of the following codes and press [Enter] : Note: Press [Tab] instead of [F2] in the demo version of the game.

Result - Code:

Enable God mode - invincible 1
Disable God mode - invincible 0
Full health - health
Invisibility - invisible 1
Disable invisibility - invisible 0
Full ammunition - ammo
Flight mode - fly
No clipping mode - ghost
Disable flight and no clipping modes - walk
View stealth amount - stealth
Freeze enemies - playersonly 1
Unfreeze enemies - playersonly 0
No enemies - killpawns
Spawn indicated item - summon

Easy cheat mode:
Note: This procedure involves editing a game file; create a backup copy of the file before proceeding. Use a text editor to edit the "splintercelluser.ini" file in the "splinter cellsystem" folder. Scroll down until find any free keys. Bind the desired cheat codes to a key.

Video Resolution Fix
NOTE: IGN takes no responsibiility for changes you make to your hardware, software, drivers, or O/S.

The game makers elected to reduce the resolution of all 32-bit video cards to display a maximum resolution of 640 X 480. If you want a higher resolution, find the SplinterCellUser.ini file in the ...splinter cellsystem directory and open it with a text editor. Find the line, "Resolution=640X480" and change it to whatever resolution value your video card (and monitor) can handle.

Item names:
Use one of the following entries with the summon code.

echeloningredient.ecamerajammer
echeloningredient.echemflare
echeloningredient.edisposablepick
echeloningredient.ediversioncamera
echeloningredient.ef2000
echeloningredient.eflare
echeloningredient.efn7
echeloningredient.efraggrenade
echeloningredient.elasermic
echeloningredient.elockpick
echeloningredient.emedkit
echeloningredient.erappellingobject
echeloningredient.eringairfoilround
echeloningredient.esmokegrenade
echeloningredient.estickycamera
echeloningredient.estickyshocker
echeloningredient.ethermalgoggle
echeloningredient.ewallmine

Keypad codes:

Mission 1 - Police Station
Keypad 1: 091772
Keypad 2: 5929

Mission 4 - CIA HQ
Keypad 1: 7687
Keypad 2: 110598
Keypad 3: 2019
Keypad 4: 110700
Keypad 5: 0614 (if Dougherty gets through the door before you can)

Mission 5 - Kalinatek
Keypad 1: 97531
Keypad 2: 33575
Keypad 3: 1250

Mission 8 - Chinese Embassy, Part II
Keypad 1: 1436
Keypad 2: 9753
Keypad 3: 1456
Keypad 4: 1834
Keypad 5: 7921

Mission 9 - Presidential Palace
Keypad 1: 2126
Keypad 2: 70021
Keypad 3: 66768