The evil Mad Mizer has kidnapped the beautiful princess Margarita and is holding her in Groken Castle. After valiant, yet futile attempts by many brave knights, Prince Rafael heard of Margarita's plight and set out to rescue her.
In Castlequest, you take the role of Rafael as you search the 100 rooms of Groken Castle in order to save the princess. Each room consists of several doors of a certain color that must be opened with a key of a matching color. Keys are limited and must be used sparingly. Rafael has 50 lives with which to make it through all of the rooms, gaining an extra life for every 10,000 points. Points are earned by collecting the castle's many treasures. Jump and slash your way through any enemies that may impede your progress. Traps will get in your way as well, so be careful to avoid them.