Play Castlevania: Harmony of Dissonance (Japan edition) Online

Create new data, enter your name, and enter the castle from the scene where Juste and Maxime are chasing Lydie. In the early stages, dash left and right to get past enemies and devices, and at dead ends, check the map and secure the first save room. Combining a sub-weapon and a spellbook creates a spell fusion.

D-pad: Move/Crouch, A: Jump (double jump after acquiring the ability), Down + A: Sliding, B: Whip (hold to swing), Up + B: Subweapon, L/R: Left/Right dash, START: Status, SELECT: Map. Get off the thin floor with Down + B.