Male cheerleaders jump out of closets, burst into ramen shops and join the daily Japanese rat race -- in a bid to save humanity.

They cheer, they dance, they play the trombone and they're the cover boys of the coolest Nintendo DS game yet.

"Ossu! Tatakae! Ouendan!" (roughly translated as "Hey! Fight! Cheerleader Guys!") is a rhythm music game from the folks behind "Gitaroo-Man," another quirky Japanese music game for the PlayStation 2.