Final boss

Final boss can refer to:


 * Octo Valley's final mission, Enter the Octobot King!, against DJ Octavio
 * Octo Canyon's final mission, Tide Goes Out, against DJ Octavio feat. Callie
 * The Octo Expansion's final battle, Turf War, against Commander Tartar
 * Return of the Mammalians' final missions, Rocket Battle and Return of the Mammalians (mission), against Mr. Grizz