Day of the Tentacle follows the point-and-click two-dimensional adventure game formula, first established by the original Maniac Mansion, is focused on Bernard Bernoulli and his friends Laverne and Hoagie, as they help Dr. Fred Edison using a time machine to prevent Purple Tentacle from taking over the world. The game utilizes time travel and the effects of changing history as part of the many puzzles to be solved in the game...