The Duracell bunny now runs so far that he is gatecrashing other brands' ads, the battery company's latest campaign says.
The spot begins as standard Duracell fare (animated bunny outlasts rival in a race) and appears to end after a few seconds. It then cuts to what seems like another, real-life film for a sportswear brand showing an athlete going for a run, before the bunny unexpectedly reappears and challenges her to a race.
"It's not even his ad, how is he still running?" the voiceover cries. The work was shot at dawn in London's Queen Elizabeth Park, near the Olympic stadium.