Sega Ages Online is part of the Sega Ages label of games released for the PlayStation 3's PlayStation Store and Xbox 360's Xbox Live Arcade. On May 22, 2012, Alex Kidd in Miracle World was released as part of this series alongside Wonder Boy in Monster Land, Wonder Boy in Monster World, Monster World IV, The Revenge of Shinobi and Super Hang-On, and The Revenge of Shinobi. They were released in all regions, but they only use the Sega Ages Online label in Japan. The Xbox Live Arcade version uses the label Sega Vintage Collection outside Japan. Besides the original games, a challenge mode was added to each game.