Grand Theft Auto 4 went on sale today (Tuesday) and is expected to be the biggest gaming event ever, with first-week sales forecast to be up to 200 million, beating last year's Halo 3.

Many game retailers have already sold out of the game, and players around the globe are touting it as the greatest of all GTAs.

The game has drawn fire from family groups and politicians regarding the games subject matter as, in the game, you portray an Eastern European immigrant who runs drugs, shoots at police and beats up prostitutes after falling in with a crime syndicate.

With most people playing the game for the first time today, video game internet sites are being in undated with requests for Grand Theft Auto 4 cheat codes to complete the game.