Portland's unofficial slogan is 'Keep Portland Weird,' and the 'Odnarotoop' tourism ad delights in adhering to that directive. The ad, which is airing in Japan to get more Japanese tourists into the city, consists of a series of charmingly bizarre stop-motion animations and an undeniably catchy Japanese song.
Portland written with a Japanese accent and spelled backwards is Odnarotoop, and that's the reasoning behind the ad and song title. The strangeness of that title is only compounded by the ad itself.
The animations somewhat explicitly reference the animation work of Terry Gilliam from Monty Python, with a cut-and-paste aesthetic that combines cute cartoons with live photography. The song is written in Japanese to appeal to the target audience, but stylistically is similar to a Beatles song from the 'Sgt. Peppers' era, which also fits the animation.