NEW YORK ( TheStreet) - Activision ( ATVI) announced Tuesday that worldwide sales of its Call of Duty: Black Ops title had surpassed $1 billion since its November release. The milestone is particularly significant, as theatrical blockbuster Avatar is the only other entertainment title to reach the $1 billion revenue mark within a similar time frame, according to Activision CEO Bobby Kotick. Black Ops generated more than $650 million in its first five days, beating the $550 million record set by its predecessor Call of Duty: Modern Warfare 2. Black Ops is a first-person shooter video game that takes place during the Cold War. Earlier this month, Activision's World of Warcraft: Cataclysm became the fastest-selling PC game of all time, selling 3.3 million copies in its first 24 hours of release. Shares of Activision jumped 2% in afternoon trading to $12.47. --Written by Olivia Oran in New York. >To follow the writer on Twitter, go to http://twitter.com/Ozoran. >To submit a news tip, send an email to: firstname.lastname@example.org.