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Mind Mist was one of three inventions that Dr. Bunsen Honeydew invented in Muppets from Space for the Muppets to use when they attempted to rescue Gonzo.
When sprayed on somebody, Mind Mist causes those who have been sprayed with it to obey every command of the person who sprayed it. Miss Piggy uses it on a C.O.V.N.E.T guard so that he'll let her through the gate into the compound. Later, she sprays it on Shelley Snipes so that she can take over Shelley's job as anchorwoman.