When first starting the game, notice that the center of the wooden wall behind you is different then its rest. As you pick the pipe, break the middle of the wooden wall and follow the way down. On the floor will be pistol ammo.
Load the game with the +developer 1 command line parameter, then press ` to display the console prompt during game play and enter one of the following codes to activate the corresponding cheat function. Note: The codes are reset when a level starts and must be activated after game play actually starts. Note: Some codes may only be effective in the demo version of the game.
CHEAT FUNCTION - CHEAT CODE Toggle God mode - immortal or god Toggle no clipping mode - noclip Play selected map - map Spawn gibs at crosshair location - gibtest Jet pack mode - give jet pack Jump or duck to fly after jet pack mode is activated - use jet pack Pistol silencer - give mods Ignored by opponents - notarget Toggles third-person view - togglecam All items, except cash - give all Bullets - give bullets Shells - give shells Gas for flamethrower - give gas Money - give cash .308 caliber bullets - give 308cal Grenades - give grenades Rockets - give rockets Full ammunition - give ammo Crowbar - give crowbar Pistol - give pistol Shotgun - give shotgun Flame-thrower - give flamethrower Tommy gun - give tommygun Heavy machinegun - give heavy machinegun Grenade launcher - give grenade launcher Bazooka - give bazooka Silencer for handgun - give spistol Auto-reloading handgun - give pistol reload All weapons - give weapons Cash - give cash Health - give health Coil - give coil Watch - give watch Battery - give battery Whiskey - give whiskey Chemical plant key - give chem_plant_key Fuse - give fuse Bait shop key - give shop_key Warehouse key - give warehouse_key Lizzy's head - give lizzy head Shipyard key - give shipyard_key Moker's office key - give office_key Valve handle - give valve Skytram ticket - give ticket Flashlight - give flashlight Small medical kit - give small health Large medical kit - give large health Adrenaline - give adrenaline Full health - give health Helmet armor - give helmet armor Jacket armor - give jacket armor Legs armor - give legs armor Full armor - give armor On-screen enemies on fire - extracrispy