Suicide Mouse is one of the Easter Eggs in Five Nights at Treasure Island. He is a normal Mickey Mouse suit, but colored in greyscale.
Suicide Mouse bears a strong resemblance to the Mickey Mouse as first depicted in his early cartoons, as all of his colors are in greyscale and his features match the original cartoon Mickey Mouse. He walks around with his hands tucked behind his back, except for when he is in the Meat Freezer.
When Suicide Mouse starts, the TV in the Broadcasting Room will turn on and Suicidemouse.avi will play. For now, a death animation does not currently exist for Suicide Mouse, but he can crash the player's game and will scream multiple times if he catches the player Hiding under the desk. When Suicide Mouse enters Character Prep 1, the posters on the wall change to an image of his face, similar to the original Mickey Mouse cartoon intro and outro.
When moving, Suicide Mouse will occasionally whisper:
- "I didn't believe it."
- "I didn't know that, I didn't know that."
- "Your father told you."
Suicide Mouse starts in the Broadcasting Room, and will eventually enter in Character Prep 1, the Staff Area, the Meat Freezer and The Office.
Suicide Mouse's song.
Suicide Mouse saying "I didn't believe it..."
Suicide Mouse saying "I didn't know that, I didn't know that..."
Suicide Mouse saying "Your father told you..."