Big mouth anti-violent videogames US attorney Jack Thompson has been speaking out once more, this time fixing his sights on GTA IV.

Thompson has demanded that Take Two and Rockstar cut an entire section from the upcoming game.

In a letter, reported on GamePolitics.com, Thompson refers to the first mission of the game where gamers have to assassinate a lawyer who just happens to stand against violent games.

Obviously, Thompson believes this is based on him, specifically pointing out something spoken by the lawyer character in the game.

The character is heard saying, "Guns don't kill people, videogames do," which is something which Thompson himself has been attributed with saying, although wrongly.

Thompson continues to claim that the characterisation could threaten his own safety and has therefore demanded its removal by 5pm on September 21.