Summary
As the title suggests, 3D Galax expands the Space Invaders/Galaxian formula into three dimensions. Played from a first-person cockpit view and featuring flat-shaded polygonal visuals, the game sees waves of aliens moving toward the player, who must eliminate them using a laser cannon. Unlike the original games, the aliens do not fire back—their only threat comes from colliding with the player. If any aliens in a wave remain unscathed after passing the player during an attack run, they will continue to attempt another assault, repeating the process until either the player or the entire wave is eliminated. The alien formations evolve every four waves, but only after a bonus stage requiring the player to maneuver through an asteroid field is successfully completed.