It uses a 1B1165/1 MPU, five 1B13123 (7 Digit) Display boards, a 1B1166 driver board, a 1B11136 Sound board, and a 1B11167/0 Power Supply board. The game in the manufacturer's flyer shows all four flippers are red in color, but the angle in which the game was photographed does not show if the outer flippers have the so-called winged extension seen in the production games that prevents the ball from draining when the flipper is energized. The production games we have seen all have winged outer flippers that are blue in color while the inner flippers are red and wingless. Early sample machines reportedly included a backglass animation not found on production machines. The face image at the back of the tunnel was supposed to have rotated, whereas later games have a fixed image and only the infinity lighting of the tunnel. If anyone has an example of this rotating feature, please contact us. The power supply schematic as it was first printed by Zaccaria has two known errors: the polarity of bridge P4 is backwards, and R11/D3 combo is shown in the wrong order. A corrected power supply schematic has been added to this listing.