An anonymous video attacking incumbent Vision Vancouver Mayor Gregor Robertson has emerged online less than two weeks before the municipal election, but the Non-Partisan Association denies any involvement.

The video, titled "Mayor Moonbeam," features an animated Robertson dancing in the Occupy Vancouver camp to a musical parody of the 1950's classic, "Mr. Sandman."

The song references all of the core talking points employed by the mayor's political rivals, including backyard chickens, bike lanes, the Stanley Cup riot and the Olympic Village.

"Olympic Village is out of gas, and now we're getting it up the [bleep]," the lyrics say.

Vision Vancouver executive director Ian Baillie said the video was clearly created by professionals.

"It has lyrics that rhyme, it has everything perfectly synced and in-sequence. If an amateur was doing this, you wouldn't have such a polished product," he said. "Clearly there's money spent on this."

But NPA spokesman Michael Davis told he was assured by the campaign manager that the party had nothing to do with it.

"He said we didn't pay for it, didn't organize it," Davis said.

The NPA hired Campaign Research Inc. to help with its election campaign, but Davis denied that they were tasked with producing anonymous attack ads.

"My understanding is they were hired for polling, full stop," he said.

The company has been credited with operating a fictitious Twitter account while working for Toronto Mayor Rob Ford's campaign, and with creating the website attacking Premier Christy Clark during her bid for leader of the BC Liberal party.

Calls to Campaign Research's Vancouver office were not returned.

In federal election campaigns, parties, individuals and businesses are required by law to reveal the source of all advertisements and register with Elections Canada any ad that cost more than $500 to produce.

In B.C., municipal campaign advertisements are not subject to the same scrutiny. Anyone who spends more than $500 on ads supporting any party or candidate is only required to disclose how much they paid as "campaign organizers" – after the election.

Ads can be aired completely anonymously.

The "Mayor Moonbeam" video has been viewed more than 6,200 times since being uploaded on Nov. 7.