This exclusive variant to ADVENTURE TIME #4 was available at the Maine Comics Arts Festival in May 2012 and was limited to 750 copies.
*Oh My Glob! The Latest Super-Cool Issue of the Hit Series! Finn, Jake, Marceline, Princess Bubblegum and even Lumpy Space Princess have banded together to stop that jerk the Lich from throwing all of Ooo into the sun! It's gonna take a lot more than a sweet punch to knock this guy out - luckily, Finn and Jake are on it! The Cartoon Network cartoon's brand-new comic book series is a huge hit! Don't miss this arc-ending issue!
*Source: boom-studios.com