Namco Phozon

This article is a generic description of Namco's 8-bit "Phozon" hardware. For the specific arcade game, see Phozon.

The Namco Phozon, also known as the Namco Gaplus, was an 8-bit arcade game system board which was first used by Namco in 1983; the first game to run on it (and the one after which it is named) was only released in Japan while the second (and last) game to run on it was a sequel to Galaga (after which it got its alternate name), released in the United States by Bally Midway as Galaga 3 to increase recognition among fans of its two predecessors and boost its sales.

Namco Phozon specifications

List of Namco Phozon arcade games


  1. "Schematics and Wiring Diagrams". Gaplus Preliminary Owner/Operator's Manual (pdf). Franklin Park, Illinois: Bally/Midway Mfg. Co. 1984. pp. 12–20.

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