|The title "Twin Fish" is unofficial because the subject's actual title is unknown.|
Each fish swims up and down on either side of the map (left or right). They take turns jumping out of the water and crossing over to the other side of the map. While crossing over the arena, the fish are vulnerable to attacks and will harm players on contact. The more damage each individual fish takes, the faster it will move.
When the fish are separated, there will be a pause before one of them jumps, but when both fish are on the same side, the fish that did not just cross over will immediately jump. When the first fish is defeated, the second will wait until it has disappeared before attacking again.