KIRBY'S DREAM LAND Released: 1992 Developed by: HAL Labratory VITALITY CHANGE Hold "down", "select" and "b" all at the same time. This enables you to change your vitality and much more.
QIX Released: 1989 Developed by: Taito GAME GENIE CODES Infinite Lives                  002-888-F71 Start with 9 Lives           09D-8DC-E66 Start on level 4               03D-7BC-E6A Start on level 8               07D-7BC-E6A Start on level 13             0CD-7BC-E6A Sparks won't chase you   00B-829-2A7