The Boss Galaga and Galaxian Flagship are replaced with the Queen Gaplus (also known as the King Gaplus) that carries a 'blaster head' at the top.
The player controls a starfighter that can now move up to halfway of the screen (much like Atari's Centipede) and must destroy all of the insect-like invaders to complete a stage. In the US, a conversion kit that changed the title to Galaga 3 was released (even though there is no official 'Galaga 2') to have more recognition amongst fans. It was the only other game that ran on Namco's Phozon hardware, three Motorola M6809 processors running at 1.536 MHz and is the second sequel to Galaxian (after Galaga). Gaplus (ギャプラス, Gyapurasu?), also known as Galaga 3 is a shoot-em-up arcade game by Namco and released in 1984.
