Gunnail

The player controls a spaceship and two accompanying small spaceships which navigates various levels and defeats enemies. In addition to bombs, power-ups are available as alternative types of firepower that vary between the main ship and the small ships. Unlike other shoot 'em ups, the accompanying small spaceships do not dissipate when the main ship is hit. Rather, taking hits causes the ship to lose one in four available shields in exchange for improved scoring multipliers and power-ups; the spaceship is at its strongest when all shields are depleted, though it becomes highly vulnerable and will lead to a game over when hit. Items that grant extra points are available after defeating various enemies.