Shadow Hearts

Dark Gravestone: In the room where you found and fought Yuri (Blue Castle Tower). After you defeat him, go back upstairs to find it on the floor.

Earth Gravestone: Go back to Bistritz. Step on Nina's seeds and leave Bistritz. Return later and talk to Nina inside. Leave again and return. You will find Nina outside and she will give you the stone.

Air Gravestone: Bring some Tissues with you. Go back to Prague after your battle with Roger Bacon/Amon. Talk to the barkeeper and check the restroom. Yuri will give him some Tissues. Leave the bar and the man will give you the stone.

Light Gravestone: You can find it in Roger's house. His house is round; keep going past the vending machine until you cannot go anymore, then press X. It is in a chest that you cannot see.

Fire Gravestone: Calios Mental Hospital. Its on the second door on the second room. Open the chest and after you find Halley's mom, go back to the room. You can see a red thing on the opened chest.

Water Gravestone: After you defeat Roger Bacon/Amon. Go to Knowledgable Carl's house and check the phone. When it mentions the place "Rouen", leave and go to Rouen. A new person will sell it to you.

Light the candles in the blue castle in alphabetical order by name: Abel, Edgar, Frank, Helen, Leon, Maria, Robin, and finally Steven. This will open the door to the throne room.

The code for the door on the right upstairs is "5375". The code for the big door downstairs is "3754"

Most of the monsters in her pit fight attack with status and ring abnormalities. You should have a Crucifix and a Pocket Watch equipped to render the effects harmless. Win ten consecutive times and she will give you some rare items.

Fuse with the level 3 monsters and have them Berserk. They will use the skill and you will also learn it. Do this for Czernobog, Seravi, Lobo, Egil, Sandalphon, and Forron. You can also do this for Amon and Seraphic Radiance.