Illuminoct is a golden Venoct. He sports a white figure with long, sandy-blonde hair that covers most of his face. A small amount is pulled into a ponytail held with a sky blue band, which matches his visible eye. He wears a pale blue outfit with a very light blue-white material around the waist held with a white band. The lower leg is covered by pale brown material to match his fingerless gloves, while the toed-sandals are gold. Around his neck is a wispy, pale yellow scarf with the tails resembling dragon heads.
Illuminoct is a very high-strung Yo-kai in the game. His last quote before fighting you is, "SHINING~!"
Yo-kai Watch Wibble Wobble
Illuminoct could be freed from the Crank-a-kai in a limited time event, and was a score attack boss.
Yo-kai Watch 2
Illuminoct can only be befriended in the Psychic Specters, and is found at Manpuku Otafuku Station, where he can be battled once a day until he's befriended through the normal method.
Yo-kai Watch Busters
Illuminoct can be freed from the Crank-a-Kai with the Red Coin, Red Coin G, and the Fukushi Gashakoin
Illuminoct (as Hikari Orochi Shu Yu) can be freed from the Crank-a-kai with a Sagaruki Coin.
Yo-kai Watch 3
Illuminoct is befriended by defeating him in the sidequest "Who gathers the sacred light", Tempura version only.