1979 saw many sequels and prequels in video games, such as Space Invaders Part II and Super Speed Race, along with new titles such as Asteroids, Football, Galaxian, Head On, Heiankyo Alien, Monaco GP , Sheriff and Warrior. For the second year in a row, the highest-grossing video game was Taito's arcade game Space Invaders and the best-selling home system was the Atari Video Computer System (Atari VCS).