— Mutant Rabbit's unlock message
The Mutant Rabbit is a premium, limited time, character that was released on November 5, 2014 during the Simpsorama Promotional.
It returned on January 23, 2018 during the Bart Royale 2018 Event as a possible prize in the Doomsday Mystery Box. It returned again on August 22, 2018 during the Moe's Ark 2018 Event as a premium character.
The Mutant Rabbit was created accidentally from the combination of a rabbit's foot, a sandwich with Bart's "nasal" DNA in it, and radioactive waste that seeped into the "time capsule" that the first two items were placed in.
- When tapped, the Mutant Rabbit elicits the same scream as the Grem-Aliens from the Treehouse of Horror XXV Event.
- The Icon in the upper left corner cycles through various other characters when the Mutant Rabbit is at the top of the stack. Once selected the Icon stops changing. The proper Icon for the Mutant Rabbit is displayed in the Town Hall Census.
- The task Mutate was not available until the day after the Simpsorama episode aired on November 9th.