The "Altar of the Mysterious Force" was an altar made by Stacy Hirano in the movie to call the Mysterious Force after seeing her friend being supposedly eaten by it.
Near the end of the movie, Stacy pleads for the force to return her friend, and when she sees her she takes a minute before she also asks for a car. The altar has not been seen since then.
- "Phineas and Ferb The Movie: Across the 2nd Dimension" (First appearance)
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