Mermaids of Atlantis: The Riddle of the Magic Bubble is a Nintendo Entertainment System game set in the underwater realm of Atlantis. Players navigate a vibrant environment to thwart the malevolent Emperor O-Dinten, who seeks to monopolize joy through his Dura-Bubble invention. The objective involves popping an array of colorful bubbles to restore freedom and fun to the ocean's depths.
Far below, from the dark and murky depths, another shiny bubble cluster rises. Though very beautiful, the strangely quivering bubbles are part of a sinister plan, concocted by the evil Emperor O-Dinten. With the patented Dura-Bubble, he plans to profit from fun itself by controlling all the games under the sea. Can you stop him and restore "The Freedom to Have Fun" to the undersea world of Atlantis? It's a brain-bursting bubble battle to pop thousands of beautiful bubbles before they overflow to the open sea!