The game story revolves around a young boy named Erwyn, who has been captured and imprisoned by the evil Master Gardal. The boy's soul is pure and untainted, and if Gardal sacrifices Erwyn then Gardal may breach the gates of the Castle of Heaven - a fortress built to protect the world from dark forces. However, Erwyn's clairvoyant sister has sealed his soul within a protective orb, and it is her job to free the orb from captivity and guide it safely to the Castle of Heaven.
The gameplay involves navigating through levels with increasingly complex puzzles and obstacles. The player must use the different states of the orb and the beam of light to overcome challenges, such as moving platforms, spinning blades and traps.