The upcoming “Dragon Ball DS” (known outside Japan as “Dragon Ball: Origins”) had its demo hit the “Minna no Nintendo Channel”, but only in Japan. It sounds like it will only be available until the 17th (the game is due out on the 18th of this month in Japan), and there is no word on a possible release of the demo for any other market.
Also, the third TV spot for the game is available for viewing over on GameTrailers.com — absolutely beautiful.