Purple Tentacle is the primary antagonist of Day of the Tentacle, and one of the antagonists of Maniac Mansion. He is the evil counterpart of Green Tentacle.
Maniac Mansion Edit
Day of the Tentacle Edit
Some undisclosed amount of time after the events of Maniac Mansion, Purple ingests sludge from Dr. Fred's Sludge-o-Matic and spontaneously grows arms (but sadly for him, no fingers or opposable thumbs). This emboldens him to attempt to take over the world, via political maneuvering and sundry childish pranks (i. e. cow-tipping).