Cat Doraemon very hungry. His hosts went to rest at sea, and the baby have forgotten at home. Doraemon have to overcome his fear of water, and took a boat to go fishing. All is well, but he does not float, and he does not know when to catch fish. He just puts the hook in the water and pulls it up with the hope that a fish will be caught on the way. Help the cat to catch the fish, using the mouse to control.