Blowhole Castle

Blowhole Castle is the eighth level in Wario: Master of Disguise. The castle is haunted, but the ghosts are harmless and intangible unless the spirit switches are turned on. However, turning on the spirit switches is necessary to make progress since certain platforms only turn solid when the switches are on. The castle is also inhabited by many dolphin creatures, whom are also ghosts.

Throughout the castle are many white doors that disappear if Wario does not enter them quickly enough. Several of the level's treasures are hidden behind these doors, making it harder to obtain these treasures. Wario can also obtain the Sparky Mastery Gem in this episode, though it is not required.

Episode 8: When Dolphins Ruled the Earth!
Wario reaches the castle after destroying the Barfatronic Lavachomper and making it out of Sweatmore Peak. Count Cannoli is surprised to see that Wario beat the Lavachomper and flees inside the castle, telling Wario to follow him inside and bring Goodstyle along if he wants to know where the next Wishstone piece is. Before Wario goes inside, the girl from before shows up and warns him about the ghosts that lurk in the castle.

After reaching the top of the castle, Wario finds himself blocked by a flaming wall formed by spirits. The mysterious girl appears again and speaks to the spirits, and she informs Wario that they've gathered there because one of their friends is missing. By finding the missing spirit and reuniting it with the others, Wario gets the spirits to leave.

However, Wario walks into the next room only to find a locked door. Cannoli arrives and tells him that he has aligned himself with the castle's ruler, Stuffy the 64th; his magic is holding the door shut. Wario fights Stuffy and defeats him, undoing his magic seal and allowing him to escape from the castle.

Enemies

 * Sir Flap-A-Lot
 * Gooey
 * Puffy the Dolphin
 * Buffy the Dolphin
 * Bombat
 * Stuffy the 5th
 * Rolltergeist
 * Treasure Pest
 * Fluffy the Dolphin (only appears during the boss battle)
 * Stuffy the Dolphin (boss)

Treasure chest locations
Note: A Treasure Pest will appear in place of one of the red chests, making it unobtainable on the first run.