Halley Wars is a space-themed shoot 'em up game released for the Sega Game Gear. Developed by Sega and released in both Japan and internationally (USA and Europe), the gameplay involves piloting a spaceship and shooting down enemies.  The game features challenging levels, varied enemy types, and power-ups to aid the player in their mission.  While specific details of the game's development history are scarce, its release coincides with the growing popularity of space-themed shooters in the early 90s. Its simple but engaging gameplay and retro visuals make it a popular choice amongst fans of classic Sega Game Gear titles.

Halley Wars (Japan)

Greendog (USA, Europe)