Bowser Jr. Boulevard is a stadium in Mario Sports Mix. There are moving circles that say x2, +10, -5, x3, etc. If you score a goal or make a basket while on one of these, that is what will happen to your score. In volleyball, instead of x2, etc. the field is divided into a grid-like shape. To gain extra points, you must get Tic-Tac-Toe on your opponent's side by hitting the volleyball into a square to create a mark.