Mario Tennis Fever boasts one of the largest rosters ever seen in a Mario Tennis title with 38 playable characters and 20 color variations. Like in other Mario sports games, you’ll start out with a set of characters that are available as soon as you launch the game, but there will be another set that you’ll need to unlock through a series of challenges. Mario Tennis Fever has streamlined the unlocking process, but there are a few unlocks that are a bit tricky.

