Original airdate: November 8, 2010 Mordecai’s old friend Don visits, showing off his perfect life. Rigby grows jealous and tries to sabotage Don, only to learn Don is secretly a supernatural being testing their friendship.
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 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.