User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-6050823-20130806163748/@comment-6050823-20130806185729

@Gold Guild Knight Do you mean the virus? If so than, Goa Magara doesn't control the monsters, the virus just over takes the monsters. When the monster loses a certain amount of health, it will faint and a small music will begin to play before a black-purple smoke will appears around their face. Right as the theme ends, a purple aura will appear around the monster turning it a purplish tint before the monster gets up and roars. The monster will than be able to give the virus with any attack they do and will just become more aggressive,faster, and more dangerous.