comeback. Beating Bowser Jr. earns the player 100 coins to use in the shop, while losing costs the player half of their coins. In the event of having an odd coin count when losing to Bowser Jr., the coins will be rounded up. Bowser Jr.'s team also has players from disbanded teams that the player can recruit; in which case the only mission objective is "Win the game." There is a shop located on the map for purchasing power-ups, each worth a certain number of coins that the player earns from the minigames or Bowser Jr. In order for a Captain to use their special abilities, they must be purchased from the shop; these power-ups are permanent, and can be carried over into other Challenge Mode games by continuing from a previously cleared game. Other power-ups offer a temporary boost to a stat for all characters on their team, but they only last for one game, win or lose. A Toad runs the shop. Another goal during Challenge Mode is the Superstar quest; each character has a set of requirement that earn stars. If a character meets all of his or her requirements, then the character upgrades to a Superstar, and gets a boost in all their abilities. Also, once a character becomes a Superstar, the Superstar version of the character can be used in other game modes. There's a simple way to figure out the number of superstar missions per player. The captain of the team has 10 missions. The 2nd captain has eight. Minor characters have six. And characters of race (excluding Monty Mole who has six) have four. Note that players like Red Koopa and Black Shy Guy can be unlocked by completing the main changing color player like Blue Pianta & Blue Noki. The game rules that cannot be changed are as follows: Your team bats first, and the Star Skills and mercy are turned on. There are four difficulty settings for challenge mode that are similar to those of Mario Kart: Double Dash - Mushroom (easy), Flower (medium), Star (hard), and Special (very hard). On Mushroom, Flower, and Star difficulty setting, four other teams are challenged for three innings. After each team has been beaten at least once, Bowser is played for five innings. On Special difficulty setting, the innings change so that each team is played with two additional innings from before. Once the