Half-Life 2 Cheats for the PC

Console cheats:
Right click on the Half-Life 2 short-cut, go to "Properties," and add -console at the end of the target line so that it reads:

C:\Program Files\Half-Life 2\hl2.exe-console

Apply the change, close the Properties window, and double-click the short-cut to run the game. During gameplay, press ~ and enter the following.

Weapon names:
weapon_alyxgun, weapon_ar1, weapon_ar2, weapon_bugbait, weapon_cguard, weapon_crowbar, weapon_extinguisher, weapon_flaregun, weapon_frag, weapon_gauss, weapon_hopwire, weapon_iceaxe, weapon_physcannon, weapon_physgun, weapon_pistol, weapon_rpg, weapon_shotgun, weapon_smg1, weapon_smg2, weapon_stickylauncher, weapon_stunstick, weapon_thumper, weapon_sniperrifle, weapon_rollerwand, weapon_molotov, weapon_manhack, weapon_immolator, weapon_irifle, weapon_slam, weapon_hmg1, weapon_cubemap, weapon_binoculars, weapon_ml, weapon_brickbat

Item names:
item_box_buckshot, item_box_mrounds, item_box_sniper_rounds, item_box_srounds, item_healthkit, item_battery, item_suit, item_ml_grenade, item_ar2_grenade, item_healthvial

NPC names:
cscanner, rollermine, poisonzombie, mossman, monk, metropolice, manhack, launcher, kleiner, ichthyosaur, headcrab_poison, headcrab_black, headcrab_fast, headcrab, helicopter, gman, fastzombie, eli, dog, pigeon, seagull, crow, combine_s, combinegunship, combinedropship, citizen, breen, barney, barnacle, antlion, alyx, antlionguard, stalker, strider, vortigaunt, zombie, zombie_torso

Console option:
Go to Options, then advanced keyboard settings and set console preference.

Headcrabs roasting on a open fire:
After you blow up the chopper, make for the gate. Inside there, use the boat as a booster to jump into the higher tunnel. Inside it, you'll see a pool of nuclear waste. Swim to the other side of it, and head down the tunnel on the left. You'll find a alien slave cooking headcrabs on a stick! Not too useful, but funny.

Special thanks to Revolution readers Seth, wickedless and Richard Eastwood!