Issue: #30
Mordecai, Rigby, Benson, and Skips take a tour of the Rainbow Palace in the clouds, but it turns into a battlefield!
Creators: Steve Wands, Christine Larsen, Laura Howell, Mad Rupert, Michelle Ankley, Kyle Smart, Mary Gumport, Jon Morris, Lisa Moore, Sierra Hahn, Matt Smigiel
Characters: Mordecai, Benson, Rigby, Gary, Muscle Man, Skips
Story arcs: Crystal Catastrophe