Cheats:

There WERE a couple on the demo (like playing as the zombies and playing split screen on ONE computer, but Steam updated the demo so you can't anymore) but I will upload them here for your pleasure...Also, remember that Left 4 Dead will have most codes that Half-Life 2 had, so you can try putting things like: SV_Cheats 1, then put in one of the ones you used to use before! :)

REMEMBER THAT IF YOU HAD THE DEMO'S PROPERTIES (ON THE PC) TO WHERE IT UPDATES THE DEMO AUTOMATICALLY, YOU WILL NOT BE ABLE TO DO ANY OF THESE HACKS, EXCEPT FOR THE DE_DUST MAP ONE!

Here are some cheats I learned about while in Single Player:

First put in: "Sv_cheats 1"

For an Over The Shouler (RE4 style) camera: "thirdpersonshoulder 1"

To go through walls: "noclip"

For the secret Gas Can, Propane Tank and Oxygen Tank: "give gascan" & "give propanetank" & "give oxygentank"

To see what achievements will be in the retail version: "achievements_status"

To spawn different zombies, type in "zspawn" and then the name of the zombie you want (e.g. Tank, Boomer, Witch, etc.)

There will be (supposedly) 51 total achievements and 1010 total possible achievement points!

P.S. DO NOT include the little " when typing in the cheats! ALSO I am pretty sure that you COULD somehow enable achievements, since the info is already in the demo, there SHOULD be a way. If you figure it out, PLEASE send me an email at MadSkeetElite@gmail.com OR leave a comment on the Home Page! Thanks a lot! Now I gotta go watch some G4 and then get some sleep. Nite!

Also, aren't you glad I put this in SUPER BRIGHT colors? LOL, sorry but I didn't feel like putting in the "already used so much it is annoying" RED and BLACK. :)