Anders Breivik, who killed 77 people in a bombing and mass shooting in 2011, said that he'll go on hunger strike if the PlayStation 2 he has access to isn't replaced with a PlayStation 3, and other conditions aren't improved in the prisons where he's serving his 21-year sentence.

Breivik laid out his demands in a letter to French news agency Agence France-Presse (AFP). "Other inmates have access to adult games while I only have the right to play less interesting kids games. One example is Rayman Revolution, a game aimed at three year olds," he wrote.

Breivik also demanded a more comfortable sofa or armchair to sit in instead of the "painful" chair he currently has, double his weekly allowance of almost $50 to cover his correspondence fees, and access to a PC.

He describes his current conditions in the prison as "torture."

Breivik was an avid World of Warcraft and Call of Duty player before he was arrested. On July 22 2011, he bombed a government building in Oslo, killing eight people, then shot 69 people, mostly teenagers, in a social-democratic youth camp.