Here is an overview of the PlayStation Portable version, via the back of its packaging:
Somewhere between heaven and the underworld, a mysterious Wisp is re-awakening the souls of the dead to confront the evil that took their lives and kingdom. Control this spirit and command fallen knights in this captivating story of loss and redemption.
- Experience the dark events that decimated a kingdom from three different perspectives.
- Complex tactics plus frantic bullet hell action on the PlayStation Portable system.
- A PlayStation Portable-exclusive chapter lets you experience the story of Princess Yggdra.