DJ Octavio

DJ Octavio is the leader of the Octarians, the main antagonist, and final boss of both and  single-player modes. In the latter, he appears alongside Callie in the final boss, whom he has brainwashed, and is trapped in a snow globe-like tank near Cap'n Cuttlefish or Marie after being defeated for the first time.

Appearance and traits
Unlike most Octarians, which appear to be severed tentacles of octopuses, DJ Octavio is an octopus in his entirety. He is a dull red-violet with darker areas around his eyes and tentacles and appears to be perpetually angry. When he is angry, his eyes slant down even more, resembling furious eyes. He wears a large gold helmet in the style of kabuto with an octopus-shaped emblem on the front, and one of the two tentacles that are always crossed in front of him bears a large, green, X-shaped scar identical to the ones seen on other bosses. It is unknown how he and the bosses get their scars, but it is likely DJ Octavio got his during the great Turf War. He sits inside of a flying machine equipped with a pool of purple ink and a turntable, which he plays using stalks of wasabi. The turntable also has four cannons on the front, two extendable fists and a set of thrusters allowing it to fly. Surrounding the machine is a large, magenta-colored force field, which neither Agent 3 nor their ink can pass through. It is only visible when close to the machine, as a warning to the player that they need to push it back to a comfortable distance.

During the first part of Enter the Octobot King!, he fights the player normally, but when the Calamari Inkantation starts to play, he abandons his turntable to dance. At several points in the song, he strikes a series of poses and laughs. However, he still attempts to fight the player.

In the Japanese version of Splatoon, DJ Octavio speaks entirely in katakana, indicating he is speaking in a different in-game language. Unlike Jelonzo, however, he uses correct grammar.

In Splatoon 2, he is once again the final boss, fought in the level Tide Goes Out. His flying machine has received an upgrade, now having a second level on which a brainwashed Callie stands and sings. Below her is the main control. In front of the turntable and wasabi stalks is a tray of circular tentacle balls, which go flying as the player attacks the DJ. On the back of the machine are some exhaust pipes, which Octavio uses for his dash punch attack. The two giant fists are now gold and sparkly and have brass knuckles on them, which reads something in the Octarian language. There are four holes on the front of the machine, in which bombs and the ink shower attack are deployed from. Octavio's appearance has also changed: his kabuto helmet is black with golden accents and he wears a pair of shutter shades.

His humanoid form, found in a Sunken Scroll, wears the kabuto hat alongside what appears to be casual sweatpants and a shirt with sleeves resembling those on kimonos. In the Great Turf War, he probably turned into his humanoid form for the battles he was in, as a picture shared in Marina's chat room shows this. In this form his tentacles hung out the kabuto, resembling his cephalopod form's tentacles. The kabuto also obscures his eyes.

Before Splatoon


DJ Octavio has been the leader of the Octarians for an extremely long time, as far back as when they and the Inklings were allies. However, rapidly rising sea levels forced the two species to fight over land, and Octavio held his position as the leader of the Octarian army during the resulting Great Turf War. This even led him to battle his friend Cap'n Cuttlefish "during the bitter siege of Arowana Castle", which the Octarians lost.

Despite some early victories for the Octarians, a combination of good luck, superior tactics, and a higher number of limbs resulted in the Inklings being victorious, forcing Octavio and the rest of the Octarians underground into domes later called Octo Canyon and Octo Valley.

Splatoon
Around 100 years later, during the events of, dwindling energy reserves underground led the Octarians, still led by Octavio, to steal the Great Zapfish and a series of regular Zapfish that the Inklings used for power. To counteract this before the problem got too severe, Cap'n Cuttlefish secretly recruited a young Inkling he nicknamed Agent 3 to join his New Squidbeak Splatoon, intending to recover the Zapfish and defeat the Octarians again.

However, after Agent 3 defeated the Octowhirl, Octavio kidnapped Cuttlefish himself, forcing Cuttlefish's granddaughters, Agents 1 and 2, to guide Agent 3 to Octavio's base. Finally, in Enter the Octobot King!, the group was reunited as Octavio battled the New Squidbeak Splatoon. During the battle, the two agents revealed their true identities as the Squid Sisters and overrode Octavio's music, freeing Cuttlefish and spurring Agent 3 to finally defeat him, rescuing the Great Zapfish and saving Inkopolis in doing so.

After this fight, Octavio is kept imprisoned in a snow globe next to Cuttlefish in Octo Valley. If the final boss battle is repeated, it is explained that Octavio broke out while Cuttlefish was distracted by eating.

Splatoon 2


Around nine months after the Callie vs. Marie Splatfest, Cuttlefish deserted his shack in Octo Valley, giving Octavio the chance to escape. Marie was the first person to notice, after Callie's disappearance, and shortly afterwards, Octavio stole the Great Zapfish a second time and fled to Octo Canyon. As a result, Marie stationed herself there and recruited a new young Inkling as Agent 4, and the two worked together to rescue Callie and the Great Zapfish.

Eventually, in Tide Goes Out, Octavio was discovered, having brainwashed Callie into working for him. In the ensuing battle, Agent 4 defended their attacks for long enough so Marie could shoot off Callie's hypnoshades, returning her to her normal self. With some help from Sheldon, the group eventually defeated Octavio a second time, imprisoning him in a new snow globe in Octo Canyon. If the battle is repeated, it is explained that Octavio was able to escape thanks to Callie wanting to try on the hypnoshades again.

Trivia

 * DJ Octavio is one of few Octarians that have dialogue that can be heard by the player, another example being Marina. While Octolings make Inkling-like sounds, what they are saying remains unknown, though Sanitized ones do speak a few lines.
 * The weak point of all Great Octoweapons in Octo Valley, the tentacle, is identical to DJ Octavio's scarred tentacle, making him thought to be operating each one, but Sunken Scroll 24 of contradicts this.
 * The scroll depicts Octavio’s tentacles being severed from him as a control mechanism. This technology is said to be "15 years ahead of the rest of the world".
 * DJ Octavio's English dialogue differs drastically between the North American and European/Oceanian versions of Splatoon, as shown below in the gallery.
 * Though he cannot be interacted with while in the snow globe, he cowers and glows purple if shot at.
 * When designing DJ Octavio, the development team of Splatoon first decided on the name "Takowasa" (DJ Octavio's Japanese name). He was then changed from a wasabi maker to a DJ, followed by scratching music being brought in. The music starts with a rhythm that goes like 'don don don don', at which it was decided to match the rhythm with DJ Octavio's wasabi making.
 * In an interview with the game's developers, composer Toru Minegishi suggested that DJ Octavio and his subordinates use music to control the many Octarians.
 * DJ Octavio is claimed to be the inventor of the music genre "Octaronica".
 * DJ Octavio's kabuto helmet is like that of a samurai's, indicating he may be royalty.
 * Despite Cap'n Cuttlefish's revelation that Inklings dry out and lose ink as they age, DJ Octavio doesn't appear to have dried out, despite being in the same age range. How he achieved this is unknown.
 * In an old picture depicting Cap'n Cuttlefish in combat with DJ Octavio (found by Pearl and sent to Marina's chat room), DJ Octavio has the same teeth as the playable Octolings, which differ from those of Inklings.
 * DJ's Octavio's name may be referring to the Spanish word Octavo which means eighth, referring to the fact that Octavio has eight tentacles.
 * DJ Octavio's album art has text that resembles his name that seems to spell "DJ Ocwas", which may be a combination of his English and Japanese name "DJ Octavio" and "DJ Takowasa".
 * A poster seen in the Deepsea Metro has a picture of an octopus with Inkling text that resembles the word "octavi", possibly advertising a DJ Octavio album or concert.
 * It is unknown how DJ Octavio has listened to the Calamari Inkantation multiple times without being affected.

Etymology
DJ Octavio may be derived from octo and octave.