Gyruss is a classic game that is quite innovative for its time. Released in 1983, it involves tackling the enemies' spaceships, which must all be destroyed to complete the level. The enemies can shoot or destroy your ship by contact. If you fail to take down any spaceship, it flies away while others appear. Other enemies in this game include laser beam generators, asteroids and satellites. It features background music that is an electronic arrangement of the organ music 'Toccata and Fugue in D minor, BWV 565' by J.S. Bach. Take down as many enemies as possible to level up as you encounter more challenging scenes in the game.