Fuzzy Ooze

Fuzzy Ooze is a mysterious substance found in The Crater and Alterna.

Appearance
Fuzzy Ooze pulsates like a life-form, but is not a living creature. It is covered with a brown furry substance, which may have a connection with the hairy Octarians. There are Fuzzballs on Fuzzy Ooze splotches, which can be cleaned and eaten by Smallfry. According to log.exe, it was created by Mr. Grizz with liquid crystals found in the remains of Alterna, Golden Eggs, and his own fur.

Description
If an Inkling or Octoling comes into contact with Fuzzy Ooze, some manner of brown hairy fur-like substance grows all over their body, and they lose their sense of self. In this state, they are unable to do much but hopelessly roll around and respawn after a few seconds. However, Salmonids like Smallfry are unaffected by Fuzzy Ooze, and can clean it up by eating it. The player needs to grab Smallfry and throw it at a Fuzzball, at the cost of Power Eggs. This will clean up the Fuzzy Ooze.

Trivia

 * The Fuzzy Ooze and sanitized ooze from the Octo Expansion share a few similarities. Both of them were created by the respective campaigns' main antagonists — Mr. Grizz created the Fuzzy Ooze and Commander Tartar compounded a primordial ooze that would be used for sanitization.
 * Additionally, both of these substances have infected the Octarians. Respectively, the Sanitized Octarians serve as enemies in the Octo Expansion, while the Fuzzy Octarians appear in The Crater and Alterna.
 * The antagonists have also used these substances to attempt to destroy the world in the finale of the single-player campaigns. This is further reinforced in their bad endings, where during the Turf War mission, the NILS Statue's superweapon is used to destroy Inkopolis, and during Return of the Mammalians, when Mr. Grizz pilots The Spirit Lifter towards Earth in an effort to cover the planet with Fuzzy Ooze.