Level-5's Ni No Kuni was easily my "game of the show" for 2011's Tokyo Game Show. It's the first game I ran to on opening day, and it's the only game I went and played twice.
Narrating things is Level-5's boss Akihiro Hino. For reference, the clip begins with an extended trailer; after a short exchange between the three panellists, the direct-feed gameplay kicks in around 3:10. And just goes on and on and gloriously on.