Take-Two Interactive Software said a new version of the game, which features an insane asylum escapee killing enemies in gruesome ways, had won a "Mature" rating from the U.S. Entertainment Software Ratings Board, meaning it is meant for players aged 17 and older.
The ratings board had previously slapped an "Adults Only" rating on the game. While its decisions
It was the second bit of good news this week for Take-Two after the strong debut of its spooky underwater shooting game BioShock, and the company's shares rose as much as 3.3 percent.
"Manhunt 2 is important to us, and we're glad it can finally be appreciated as a gaming experience," said Sam Houser, founder of Rockstar Games, the development team within Take-Two that created Manhunt and is behind other popular but controversial titles like Grand Theft Auto and Bully.
"Manhunt 2 is a powerful piece of interactive storytelling that is a unique video game experience. We think horror fans will love it," Houser said in a statement.
The restrictions on Manhunt 2 sparked a debate in the video game industry about whether the rating system needed an overhaul. Several game critics who played review versions of the game said it was similar to extremely violent but popular horror movies such as Saw.
Take-Two shares have been hammered in recent weeks after it delayed its most important game, the criminal adventure Grand Theft Auto IV, from its original October launch date.
The stock was up 43 cents, or 3 percent, at $14.78 on Nasdaq at mid-afternoon on Friday. Over the past six months, the shares have shed more than 25 percent of their value. Manhunt 2 is far less important to Take-Two's bottom line than GTA IV. Wedbush Morgan Securities had originally estimated that the game would account for about $40 million in revenue this year.
The game will be released on Sony's PlayStation 2 console and PSP handheld device as well as Nintendo's Wii motion-sensing console.


