Doraemon: Nobita's Great Battle of the Mermaid King Word Search Puzzle – Search Characters, Actors and Actresses. Word Search Puzzle Solver. When Nobita feels like diving in his hometown Doraemon uses a Underwater Pump Simulator to pump all the water out of Tokyo causing the entire city to go underwater. That night Doraemon and Nobita use a Diving Mask Simulator to dive underwater. Later on lots of fish and a shark attack Doraemon and Nobita. So Doraemon puts a stop on the Underwater Pump Simulator but there is a girl named Sophia lying down on the bushes in his neighborhood. Find out the following actor, actress, character names, and other movie-related words hidden in this word search puzzle based on this movie.. This includes identifying and searching for words that are related to : Yumi Kakazu, Megumi Oohara, Tomokazu Seki, Mayumi Iizuka, Wasabi Mizuta, Subaru Kimura, Shihoko Hagino, Chiaki Fujimoto .