Treasure Submarine is a Party Game in Super Monkey Ball: Banana Blitz. It can be played by 1-4 players simultaneously. In it, a monkey pilots a submarine, and is trying to get treasure. When the sonar starts making noises, it means treasure is nearby. The faster the bleeps, the closer it is. To extract the treasure, the player must use the arm that can come out of the submarine, to dig into the wall.