Galaxy Force is a sprite-scaling rail shooter arcade game, released by Sega in 1988 and built upon the Sega Y Board. The game is in the tradition of Sega's Space Harrier series. The game was ported to numerous consoles including the Sega Master System, the Atari ST, the Sega Saturn, and the Playstation 2.
The game spawned a sequel, Galaxy Force II, which first appeared on the Mega Drive in 1990, followed later by an arcade version and ports for the Virtual Console and the Nintendo 3DS.
The player takes control of the TRY-Z spaceship, navigating through several missions on different planets, shooting lasers and missiles at enemies and obstacles. The ship's protective shield decreases with each collision. The ship has a limited quantity of energy; when this energy is fully depleted, the game is over. The game has only a single type of power-up, which increases the number of missiles a player may shoot in a single volley.
At the start of the game, the player may select any one of five planets:
Megaleon (Man-Made world): This is default start level. The first half consists of combat in open space, slowly approaching a fortress inside the planet. Enemies include fighter ships, with the only obstacle being an orbital construction site.
Ashutar (Volcanic world): Here, the player must traverse through two fortresses.
Malkland (Plant world): Obstacles here include a fast growing plant which entangles your ship. Like Ashutar, two fortresses must be traversed.
Sara (Desert world): The player here must avoid tornadoes and surface-to-air fire.
Orthea (Cloud world): This stage contains large formations of enemy fighters. Two fortresses must be traversed.
A sixth and final planet may be accessed only once the other five have been overcome:
Hyperspace (Final): This is the stronghold of the enemy forces.