CALABASAS HILLS,CALIE--Videogame maker ThQ is launching a $2 million ad campaign in support of Tetris Worlds, the latest incarnation of the classic Tetris game Two spots, per G&M Plumbing, El Segundo, Calif., will run on Fox,MTV,NBC and Nickelodeon next month. Two print ads will support in gaming books such as GamePro. In-flight promotions on America West, Delta and United, plus a tie-in with Candystand.com, augment.