Purple Tentacle is a fictional character from the classic point-and-click adventure game series Day of the Tentacle. He is a sentient, purple tentacle who seeks to take over the world, driven by his desire for power and domination. His character is known for his humorous personality and quirky antics. In the game, Purple Tentacle is the main antagonist, and players must navigate various puzzles to thwart his plans. The game features time travel and multiple timelines, allowing players to interact with different versions of characters and environments, enhancing the overall gameplay experience.