In this light-hearted but not always lightly animated Disney title, you are exploring Disney's famed Haunted Mansion, absorbing ghosts into your lantern by solving various puzzles in each rooms. Most of the puzzles are of the "hit some hidden switches, possibly in the correct order" variety.
The puzzles are not very difficult, but there's enough jumping and ghost-dodging to make them more than trivial. As you explore the mansion and gather souls, more rooms open up for you to explore. Some of the areas have new mechanics, and a few touches of detail (such as the singing busts) make the game a homage to Disney's famed attraction.