Ozma Wars is a vertically scrolling shooter arcade game, released in two different sets. While specific details about the developers and release dates might vary across sets, the gameplay centers around controlling a spaceship and eliminating waves of enemies.  Both sets share core mechanics, likely involving shooting, dodging, and collecting power-ups. The differences between 'set 1' and 'set 2' might involve updated graphics, enhanced gameplay elements, or changes in enemy patterns or boss fights.  The game likely aimed at providing a challenging and rewarding shooting experience, appealing to fans of the genre in the arcade setting.

Ozma Wars (set 1)

Out Zone (set 2)