This is a fact -- I have never lost a dance battle, and I never will. Please, come at me. I will bury you with my fully sick robot, then stomp the ground firm with my half arsed moonwalk. Now it looks like Yakuza 5, in addition to regular fighting, will have dance fighting, wherein combatants get jiggy for full dance superiority. I approve of this move. Wholeheartedly.
Apparently Famitsu has full details on all the ins and outs of Yakuza's dance battle system. You can dance to hip-hop, jazz, house, 'idol' and rock. Build up your meter enough and you can bust out a 'heat' move -- which I'm assuming is a bit like my robot, which I frequently bust out if I feel as though I'm losing the crowd.
At the end of the battle, you'll be judged by the audience and given 'expression power' if she wins.
This is great stuff.
Yakuza 5 Battle System Has Major Updates [Andriasang]