: Start or resume your mission. While playing, type the following codes directly on your keyboard (some sources suggest pausing first): Full Cheat Code List : God Mode for you and your team. : Unlimited ammunition. : Sets the difficulty to easy mode. : Instantly kills all enemies in the mission. : Makes enemies die instantly. : Makes the player invisible. : Instantly skips or completes the current mission. Level Unlocks

These are the standard codes provided by resources like IGN and GameSpot :

Type the word slowly and clearly on your keyboard. (There is no text box, so type it directly into the void of the menu). Start your mission.

Allows continuous firing without weapon animations.

Immediately after typing the activation word, type your desired cheat code from the list below.

– Grants absolute invincibility (God Mode) to David Jones.

: At the main menu, press and hold Left Ctrl + Left Shift + F9 to unlock all missions for selection. Environmental & Misc : stormydayq : Triggers a storm in the environment. bigbang : Destroys nearby tanks. holowman : Grants invisibility to enemies. Command-Line Shortcuts

These codes are case-sensitive and must be typed in lowercase. 2. Unlocking All Missions/Levels

Project I.G.I.: I'm Going In (Project I.G.I. 1) remains a tactical shooter classic. Released in 2000, it became famous for its massive open maps, realistic weapon ballistics, and brutal difficulty level. Unlike modern shooters, the original version of the game lacks an in-game save system during missions. If you die right at the end of a long infiltration, you have to start the entire level over.

: Some players use a custom "location zero" folder replacement to start missions with every weapon available, though this requires downloading external files and replacing original game data.

Eliminates weapon sway on sniper rifles and steady spray on the dragunov or M16.

Project I.G.I. is brutal even with cheats (enemies aim like snipers). But these codes turn it into a chaotic action movie. Just don't use STORM on your first playthrough – you'll miss the best (and hardest) levels.

There is no cheat code to "unlock all levels." The game utilizes a progressive save system tied to specific profile names.

In Project I.G.I. , alarms do not just make noise; they trigger continuous infinite enemy spawns from nearby barracks. If a camera spots you, shoot it immediately or find the alarm console to shut it off.

If you’re looking to turn the tide against the Priboi cartel, you’ve come to the right place. Project I.G.I.: I’m Going In is a legendary tactical shooter, but its lack of an in-game save system makes it notoriously difficult. One wrong move, and it’s back to the start of the level.

If you want to skip to a specific, hard level without playing through the entire campaign, you can use this simple trick:

| Effect | Code to type | |--------|----------------| | | MORRIS | | All weapons + full ammo | GORDON | | Full ammo only | PERFECT | | Skip current level | STORM | | All maps (level select) | TERRAIN |