Circle Space Fighter

Take command of a spaceship and take up battle against alien invaders. Hold the fire button on the screen to keep shooting laser beams. Press the move button to move your spaceship clockwise or counter-clockwise around the alien spaceship.

The game has a 2-player mode for 2 players on the same screen.

In the simple version you fight a small spaceship with 4 cannons on it. In the hard version you face a huge alien mothership with multiple cannons and massive armor. Dodge enemy projectiles and pick up power-ups like energy shields or enhanced cannons.