Nintendaan1 is playing a copy of Minna no Rhythm Tengoku (Rhythm Heaven Wii) and uploading choice tidbits to his YouTube account. For instance, check out this 2-player "Skewer" game:
Daan and his cousin skewered enough smiley peas to get a "pair medal."
Rhythm Heaven Wii is expected in the states later this year, but although release has been confirmed, there is no concrete date as of yet.
Via: Tiny Cartridge