After accidentally reversing gravity, Wendy rushes to set things straight by recovering four little moonstones hidden in Moon Stone Castle. With her magic wand and powers of gravity reversal, she must confront 21 different enemies through four standard levels, four bonus levels, and the final boss level. The good witch explores the standard levels on foot and takes to the air on her broomstick for the bonus levels, all the while zapping spooky enemies with her wand and dodging objects that fall to the ground or float to the ceiling when gravity reverses. Finally, she must face the evil Warlock of Moon Stone Castle in an intense battle of magical moonstone missiles.