Uchuu Keibitai SDF

Space Defence Force SDF is a vertically scrolling space shooter. Though it scrolls vertically, you are granted some movement horizontal movement as well. The action isn't frantic, but the game is still somewhat difficult due to tight enemy attack waves and the possibility of being shot in the back. For this reason, you should not let enemies pass unscathed, since they may shoot back at you from off-screen. At some points, power up capsules will materialize in space. They will grant you not only greater firepower, but also serve as a reconfigurable armor, which is SDF's main selling point. The armor may be moved from your front to your back, and while it is moved in a large arc, it will destroy any enemies it happens to ram. When fastened to your rear, it will also grant a small speed boost. Learning to use the armor is the key to surviving in this game.