This reminds me of an updated version of Moon Patrol or something.  You could replace the running man with a dune buggy quite easily.

Looks pretty fun even though that person SUCKS at playing it. Who was it? Come on, fess up!

Hard to get much out of that trailer without being able to hear much of anything, considering the Bit.Trip series is so heavily music-based.  I know it couldn't be helped, but I'll just have to look forward to a gameplay trailer with direct-captured footage.

Like this one?
http://www.nintendoworldreport.com/newsArt.cfm?artid=22697

Like that one, except without the overlay track (assuming it is one) so we can hear what the game actually sounds like during play.

Here, now that I was actually on the expo floor, not behind a window half a building away, I got some better footage with sound: http://www.youtube.com/watch?v=hwFAbnc6elY

Ah, that's better.  Much appreciated.