StarCraft II: Wings of Liberty Cheats

Cheat Codes
Activate the game console by pressing [Enter] while playing. After that, just type in the cheat below to activate the corresponding effect.

5,000 Vespene Gas: realmendrilldeep
disable victory condition: tyuhasleftthegame
Disables Ability Cooldown: HanShotFirst
Disables tech requirements: SoSayWeAll
Gives 5,000,000 credits: whysoserious
granted resources: jaynestown
Invincibility and increased damage: terribleterribledamage
Opens cutscene menu: eyeofsauron
Plays the song "Terran up the Night": OverEngineeredCodPiece
Units/Structures no longer cost resources: moredotsmoredots
Upgrades Weapons, Armor (and Shields) by 1: IAmIronman

Exploding creatures
Left click any creature several times to make it explode.

Units hidden dialogue
Keep left clicking units to hear secret dialogues.

Secret Mission: Piercing the Shroud
To unlock the secret mission, on the "Media Blitz" mission, where you get to control the Odin in the city, head down to the far bottom right corner of the map. There's a civilian building on a little floating platform. Destroy it, and "secret documents" will be revealed. Pick these up with any ground unit, and then complete the mission as normal. After, you will now have the secret mission available for selection from the Star Map.

Alternating Background Screens.
Complete the Campaign.

Unlockable Songs for the Juke Box
Terran Up the Night: Beat the campaign on any diffuculty

Cow Chat Channel
When in the Starcraft 2 menus press the blue symbol under the title. This will place you in a public chat channel called cow. Every time you speak your message will be followed by ...moo!