The Lovely Heart is an item in the game Mario Superstar Baseball. It allows Princess Peach to use her Special Ball, the Heart Ball, during Challenge Mode. It is, as its name implies, shaped like a Heart. When bought from the Shop, A notice will appear saying Princess Peach has learned the Heart Ball. This item appears only after players have Princess Peach on their team, or if the player is playing as Peach. This item doesn't appear in Exhibition Mode.