Anders Behring Breivik, the Norwegian mass murderer, has threatened a hunger strike if prison authorities don't upgrade his video game system to a PlayStation 3.

Breivik wrote to officials in November: "You've put me in hell, "and I won't manage to survive that long. You are killing me."

Breivik currently has access to a PlayStation 2.

"Other inmates have access to adult games while I only have the right to play less interesting kids games," the 35-year-old kid-killer wrote. "One example is 'Rayman Revolution', a game aimed at three year olds."

"The hunger strike won't end until the Minister of Justice [Anders] Anundsen and the head of the KDI [the Norwegian Correctional Services] stop treating me worse than an animal," Breivik wrote, adding that prison conditions amounted to "torture."

Norwegian prison officials are expected to issue an official response to Breivik's demands next week.