A Heart is a special item in the game Mario Kart: Double Dash!!. It is the unique item of both Princess Peach and Princess Daisy. When used, two small pink hearts will appear and circle around the kart. These hearts will protect the kart from any obstacles or weapons on the course. However, after an obstacle is hit, one heart will disappear.
Additionally, if the racers are not holding any items, the item that was hit will appear in a racer's hand. The racer can then use the new item as he or she pleases. Even Character specials can be picked up such as the Fireball, Bowser Shell and Bob-omb. Unfortunately, Spiny Shells and Chain Chomps will penetrate the protective barrier. Thunderbolt attacks and falling off the course will outright destroy both circling hearts.
- This is the only item in Mario Kart: Double Dash!! that you can "activate". Unlike triple shells in other games, triple shells in this game are held or juggled by the back character.