How to Descend the Catacombs of Paris in Castlevania: Belmont's Curse

In Castlevania: Belmont's Curse, after defeating the first three bosses—The Fallen, Joan of Arc, and Medusa—and collecting all three keys, return to the room where Rose fought the first boss so she can place three stones in the door and open the descent into the Catacombs. Inside, use Holy Light to phase through Chaos Shard blocks, dodge spinning blades, and fight enemies including Bone Pillars, exploding spiders, and Fleamen, with a save room found along a glowing trail to the left. It is the first truly difficult area to navigate, and the Clock Tower is even more complex and deadly.