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.