The energy they contain is powerful enough to open the gates of the Rift Hub if the right amount of Hearts is collected.
Players are able to inticate when they are getting close to a Heart because of its glow that can be seen from a far distance, and a beating sound that becomes faster and causes the controller to vibrate when the player gets closer. After collecting the Heart, Vexx will absorb the power into his talons, teleport into the Rift Hub, and deposit the Heart's energy to unlock new worlds.
Hearts that are already collected appear transparent, have no glow and produce no beating sound. However, Vexx will still be transported to the Rift Hub.
Wraithhearts can take other forms, like shards for example. Collecting 100 of these would grant the player a Wraithheart.
A second form are soul jars; collecting six will also earn the player a Wraithheart.
In Tempest Peak Manor, a Heart is trapped inside the TV and acts like a pinball in a game of Pong, where Vexx must win in order to receive it.
- The game saves every time Vexx gets a Wratihheart, as long as it's not already collected.