[2][3] Produced by DDB Needham Worldwide, the spot began as a direct parody of Duracell's "Drumming Bunny" ad.

[4] The Energizer Bunny is promoted as being able to continue operating indefinitely, or at least much longer than similar toys (or other products) using rival brands' batteries.

As the campaign progressed, many of these ads were standalone (for fictional products such as "Sitagin Hemorrhoid Remedy", "Nasotine Sinus Relief", "TresCafe Coffee", "Alarm" deodorant soap, etc.)

One infamous commercial was for a fictional long-distance telephone company with a couple in the United Kingdom talking to their son, who was supposedly in New York and exclaimed that he "sounded like he's right next door", and when the Bunny came in, he knocked down the divider to show they really were next to each other).

Fox doing a Pepsi ad, and the opening of TV shows such as Alfred Hitchcock Presents and ABC's Wide World of Sports).

In the 1990s advertisements featuring the Energizer Bunny were made by a variety of companies, including Industrial Light & Magic, Cafe FX and Method Studios.

Eric Allard's All Effects Company however did the bulk of the live action Energizer Bunny building, maintenance and puppeteering with ILM taking over for later commercials.

[11] In 1992, the company PC Dynamics created a Screen Saver for Windows 3.x featuring Energizer Bunny with audio clips from the commercials.

[12] Energizer was the corporate sponsor of Star Tours at Disneyland Park and Disney's Hollywood Studios for several years; the bunny appeared in several ride-themed advertisements around the show's exit.

The court eventually sided with Coors noting the obvious facts that the content of the ad is substantially different considering Nielsen was not a toy and he did not run on batteries.

[21] In November 2017, a United States District court judge threw out most of Energizer's claims in a summary judgement, but leaving the breach of the 1992 territorial contract dispute active with respect to the two companies' bunny trademarks.