Original airdate: September 27, 2010 Rigby challenges Mordecai to a video game, but when he loses, he learns “Death Punchies” (a deadly martial art) from an instruction manual. The fight escalates into a real brawl.
Original airdate: October 18, 2010 After eating a perfect grilled cheese, Mordecai and Rigby become addicted. They travel to a magical “Cheese Land” to find the recipe, but must battle an evil wizard.
Original airdate: September 13, 2010 Tasked with setting up chairs for a corporate retreat, Mordecai and Rigby try using a cloud of “un-set-up-able” chairs to finish faster. The chairs rebel, forming a giant chair monster.
Original airdate: October 25, 2010 Rigby tries to impress a girl by claiming he has unicorns. When real unicorns show up, they trash the park. Mordecai and Rigby must banish them with a magical rainbow.
Season 1 originally had 12 episodes. Some streaming platforms combine the pilot or specials, but this is the standard season 1 list.
Original airdate: September 6, 2010 Mordecai and Rigby find a magical keyboard that can control reality by typing words. They abuse it to avoid work, leading to chaos when Rigby types “pizza” and a giant sentient pizza attacks the park.