Wobblewok appears as a black round mass with wide-set red eyes, a large grinning mouth and thin, long arms, set inside a giant rice cooker. Paper talismans are placed along the lid, and its small feet appear to poke out from the bottom of the pot.
Being the ruler of the Infinite Inferno, Wobblewok has catastrophic power. This ranges from being able to summon meteors and lightning with relative ease, and being able to control the power of darkness itself, as seen in his Soultimate. He can also make himself invincible to certain attacks, depending on his eye color.
Challenge Wobblewok until you collect a "Ghostly Goo" drop.
To continue, one must activate the Request "Nightmare Revelation" from Lucas after completing the "Back to Yo-kai World" Request, then go to the Mirror Shrine in Flatpot Plains to use the Ghostly Goo on a conveniently placed pot.
A new Wobblewok will be born and he'll automatically befriend you, ending the Request.
Ultimate Dark (Japanese: きゅうきょくのヤミ,Kyūkyoku no Yami)
Inspirits will always succeed.
It is preferable to fight Wobblewok with a Yo-kai team of level 70 or more. At the beginning of the battle, first target the seals on the lid to set him free so it is possible to attack him directly. He will regularly use the attack "Change" to switch between two modes: in the first one (red eyes) only Techniques and SPR-based Soultimates will damage him, in the other (blue eyes) only Attacks and STR-based Soultimates. His Awful Breath will inflict random negative Inspirits on all front Yo-kai, and he'll often attack twice in a row. When he prepares his Pitch Bomber Soultimate, quickly target and destroy the seals to cancel it. Overall, bring a mixed party of Yo-kai with both high STR and SPR, keep them alive and purify them whenever you can, and you should win this battle with relative ease.
Dondoro (丼泥) means "Bowl Sludge". Wobblewok is a combination of wobble and wok (a round-bottomed cooking pan used for stir-frying).
Potofeu comes from pot-au-feu, a french dish.
Wobblewok is sealed inside a giant old-fashioned rice cooker, which could be a reference to the Dragonball series, in which the villain called King Piccolo is sealed inside an electric rice cooker. The Dragonball instance itself is a humorous play on the series' Journey to the West origins: in the novel, Sun Wukong is captured by the demon kings Jin Jiao and Yin Jiao ("Golden Horn" and "Silver Horn"), but he manages to escape and steals Jin Jiao's prized magical gourd, in which he seals the two demons.
While seeming inaccurate in the YW2 credits, Wobblewok was shown to be very small when compared to Gutsy Bones, Eyeclone, and Mallice. With that said, the Wobblewok in question might be Wobblewok's friend form.
Wobblewok is the only Yo-kai with a Boss form known to change to a different attribute, from Lightning (Boss) to Earth (Friend).
Yo-kai Watch 3 is currently the only time period where Wobblewok's Boss form is not seen in the same game his befriendable form also appears in.