Blackjack 9 is a casino-themed planet that features various casino businesses and buildings with bright neon lights and casino symbol signs.
In the episode "Cryo Mort a Rickver", Rick Sanchez and Morty Smith join a high-speed race against the Makeys and Takeys within the planet to steal money stolen by Jimmy Jamerson and Guffy Chachaco from the Plociff spaceship, as the and the Plociff ship passengers destroy buildings and try to kill each other during the race.