This is a side-scrolling shooting game in which the player takes control of the "Drainus", a ship that can absorb energy bullets, to take down the countless enemy ships zipping through space. Energy absorbed can be used to enhance the ship's functions, such as adding new weapons.

The "Reflector", which absorbs enemy shots, is the most distinguishing feature of this game.When activated, it absorbs enemy attacks for a certain period of time. Counterattacks can then be launched in accordance with the amount of attacks absorbed.

The absorbed energy is also stored in tanks. That energy can be used to enhance the various functions of your ship.