"Black Pyramid"@en . "Artwork: Greg Freres"@en . . . . "Black Pyramid"@en . "2500"^^ . . "Black Pyramid is a 1984 pinball machine produced by Bally."@en . "Designers: George Christian"@en . "Black Pyramid is a 1984 pinball machine produced by Bally."@en . "July 1984"@en . .