 In September 2012, nearing the first anniversary of the surprise flash mob event, Mullick released a second video, "Caine's Arcade 2", which primarily was a montage of these video clips.As a means of launching the Imagination Foundation, Mullick arranged the Global Cardboard Challenge, to encourage creativity with cardboard - 3 weeks after the follow-up film, volunteers organized over 270 Cardboard Challenge events across 41 countries, including one at Caine's Arcade in Boyle Heights.The event was popular, and became an annual event, with initial sponsorship from Mattress Firm, who learned of the story after Mullick and Caine spoke at a Mattress Firm event.