Pawtucket-based Hasbro Inc.’s Tiger Electronics brand has teamed with Grammy-nominated pop sensation Chris Brown to celebrate the launch of its U-DANCE gaming system, where the player is the controller. Fans can visit www.udancegame.com to watch a selection of Brown dance videos and vote on which they like best. Voters can also enter a sweepstakes for a chance to win a trip to company studios in Rhode Island, where the winner will be given a training session by a choreographer and perform in a dance video. The mat-free gaming system combines dance with patented motion-sensing technology to allow players’ feet to be the controller.