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
- Main CPU: 2x Motorola M6809, 1.536 MHz
- Sound CPU: Motorola M6809, 1.536 MHz
- Sound chip: Custom 8-channel WSG (Waveform Sound Generator)
- Video resolution: 224 x 288