Mermaid IslandMermaid Island Cooperative Board Game. A spin and move adventure game for girls. How to Play: Watch out, Mermaids! The Sea Witch is on the move! The object of the game is to move all 3 mermaids from start to Mermaid Island before the Sea Witch gets there. Because Mermaid Island is a cooperative game players play any of the mermaid tokens no one player has a single mermaid she is trying to get back to the island. Players take turns spinning the spinner