No, it's not an ad. I don't know what it is. Do you? If you do, I don't think I want to know. Is that God angrily eating everybody at the end? Via WTF Japan Seriously, which you should bookmark for a daily dose of WTF Japan.
And click here to view many batshit insane Japanese commercials.
update: it's part of a music video by the band Apogee (thanks Vinnie).