Donkey Kong II - Jumpman Returns (V1.1) (hack) is a modified version of Donkey Kong II, featuring Jumpman as the protagonist and likely some alteration of the original game's code or assets. The (V1.1) designation suggests it is a version update, perhaps with bug fixes or new features added by the person or group who made the changes. The gameplay would likely resemble that of Donkey Kong II, but with adjustments. The producer is neither Nintendo (who made the original) nor the creator of Donkey Kong II, but the individual or group responsible for this version.

Donkey Kong II - Jumpman Returns (V1.1) (hack)

Donkey Kong Duel