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On April 1, 2009, PopCap released a music video for "Zombies on Your Lawn" to promote "Plants vs. Zombies". While many PC gamers were unsure if the video was an elaborate April Fools' Day joke, PopCap spokesperson Garth Chouteau revealed in an "IGN" interview that the game would soon be released for PC and Mac. On April 22, 2009, PopCap released an official game trailer of "Plants vs. Zombies" on YouTube. PopCap Games released a demo version on May 4, 2009, permitting thirty minutes of gameplay. "Plants vs. Zombies" was officially released for PC and Mac on May 5, 2009, A free Adobe Flash version of "Plants vs. Zombies" was released on September 23, 2009, along with the demo being replaced by a version where the player can play up to level 32.