Sol-Feace (Sol-Deace in the Genesis) is a typical 2D shooter with weapon powerups. The game features six levels: Sirius, Enemy Arsenal, ArtifiStar, Pluto Base, Almathea, and Final Battle.
Along the way various weapons can be picked up including plasma bullets, double plasma bullets, lasers, and missiles.
The most unique feature of the game is that you can realign your upgraded guns to fire front-back, up-down, tight spread, wide spread or whatever the current situation required.
Description from MobyGames