This Mario Tennis Aces Rackets guide provides detail on how to unlock all the rackets in the game. There are 6 rackets in Mario Tennis Aces - Mario's Racket, Wooden Racket, Mirror Racket, Ice Racket, Shell Racket, and Flame Racket. To unlock them you need to complete a specific task in the Adventure Mode.
Mario Tennis Aces Reflection Room (The Great Mirror Mystery) Puzzle solution guide. It is one of the beginning challenges in Mario Tennis Aces where you will have to solve a mirror puzzle to clear the level.