The first of which hopefully will be many trailers from the Tokyo Game Show 2007. This one is a presentation almost 5 minutes long of some of the moves and gameplay of Ninja Gaiden DS.
As great as the game looks on the DS, I hope there's more to it than what I've seen so far. Otherwise after an hour or so it may get a bit stale without platforming elements and puzzle solving. The boss battles look impressive though and although it uses the DS sideways, it has modes for both left or right handed players.
