This is one of the Items found during the Mogloween 2008! It was introduced during a Seasonal Event, and is only available in the game during the event, or possibly never again.
This event occurred from 10/24/2008 to 11/07/2008.
Dr. Jack Springenstein collaborated with the infamous Dr.SherbertFest to create this monstrous mecha model! Includes a Monster Mash Star Captain combo against Electrocuted oppoments.