One of a popular series of Japanese arcade game conversions featuring the superdeformed warrior Wonderboy and his cute green-haired girlfriend as they undertake various quests, visit strange lands, and battle terrifying monsters. Wonderboy has a long legacy going back to the 8-bit systems such as the Sega Master System.
Wonderboy in Monsterworld, is the best known of the series due to its incorporation of adventure game elements, this was ported to quite a large number of 8-bit and 16-bit game consoles.