Alpha Mission
Alpha Mission is a vertically scrolling shooter that has similarities to Xevious, with the use of air-to-air and air-to-ground weapons.
Story
The plot of Alpha Mission is very primitive, since the game was originally developed for arcade. The player moves from level to level, fighting against waves of enemies that threaten different space stations. At the end of each level, a boss must be defeated so that the player can advance to the next level. Power-ups, upgrades and new weapons can be collected during the game, but are lost when the player dies.