Impure Mouse is a antonigist in Abandoned Discovery Island 3.0
She is a Minnie Mouse suit, but she has dot-like eyes and some human teeth.
Impure Mouse starts in the Roof, starting in Night 3. Then she goes, teleporting to Character Prep 1. Then she goes to the Staff Area, Meat Freezer, Lounge, and then the office.
- Impure Mouse can rarely appear, peeking out of the Caverns Entrance. But it is really hard to see.
- Impure Mouse is from Remastered 3.0 of the original FNaTI, however, unlike Willy, she does not make it into most revivals.
- Impure Mouse might be connected with The Face.
- She is the toughest character is the Officialtheface's Game.