Default Controls
← → ↑ ↓ = Directions
Z = A, X = B
A = X, S = Y
D = L, C = R
Enter (↵) = Start
Shift = Select
About the King Neptune’s Adventure (USA) (Unl) Nintendo Entertainment System (NES) Online Game
Welcome to King Neptune’s Adventure! Dive into an underwater journey full of challenges and treasures. Play as King Neptune himself and explore the depths of the ocean to collect valuable items and defeat enemies. With simple controls and nostalgic graphics, this NES game will keep you entertained for hours. Get ready to embark on an epic adventure without any downloads – just click and start playing for free in your browser. Enjoy the classic gameplay of King Neptune’s Adventure now!