Adventure Island II, sequel to Adventure Island, is a platforming game released February 15, 1991 for the NES. It was developed by Now Production and published by Hudson Soft.
It was first released in 1991 in North America, then Japan 3 months later, both for the NES. Europe's first sighting of the game was on the Game Boy, and was followed a couple of months later by the NES version. Other regions did not recieve their Game Boy versions until a just under a year later.
Japanese and PAL Regions got a Virtual Console version of the game late 2010/2011. North America still have not recieved their copy yet. Adventure Island for Game Boy has been released for 3DS Virtual Console, too, in late 2011 for most regions.