Was later re-released under the Thunder Mountain label. Another side-effect of shortening the playfield to a width of 256 pixels is the optimization of game calculations, stemming from the fact that horizontal coordinates fit in a single byte instead of two. Graphics Galaxian (and its clone, Cosmic Crusader) get away with relatively high framerates on the original 4.77MHz PC because they don't use the entire screen for a playfield the right fifth of the screen (64 pixels) is unused. The Arcade version of Galaxian appears in the book 1001 Video Games You Must Play Before You Die by General Editor Tony Mott.Ītari 2600 programmer Mark Ackerman, at the time working in Atari's "think-tank" GCC, was granted a patent for his technique invented for the 2600 port of Galaxian, allowing eight sprites to be displayed in one row.Ītari's 2600 release of Galaxian came with the comic book Atari Force #5.
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