Galaxian Part 4 is a hack of the original Galaxian game. Hacks are modifications made by fans or individuals, altering various aspects of the game, including gameplay, graphics, and level design.  This specific hack, 'Part 4,' likely introduces changes to the original game's structure, adding new levels, enemies, or weapons.  These modifications demonstrate the enduring appeal of Galaxian, encouraging players and enthusiasts to engage with the original code and create their own unique variations.  The history of this specific hack is likely to be found within the online communities dedicated to preserving and sharing arcade game modifications.

Galaxian Part 4 (hack)

Galaxian (version, set 1)