Fast experience
The best place by far to get quick experience when you get to a high level [70+]
Is in the reverse caverns. The items that you need are Item Duplicator, two Bat Pentagrams, the Gravity Boots and at least one Mana Prism. Go to the reverse caverns, to where you fight the scylla [giant snake monster] in the first castle. Fight the doppelganger if necessary and continue into the next room. Equip Your best items, except use one accessory slot for the Item Duplicator, and equip Bat Pentagrams in both hands. Drop down into the hole and quickly press Square, Circle to use the Bat Pentagrams before you fall on the Dark Octopusses and take damage. Then use the gravity boots jump [down, up, X] to jump back out of the room and repeat. It only takes a second or two to do and you get 13 experience points each time. After you have used the Final Guards [in the reverse clock tower] to a certain point, they give less than 10 experience and take much longer to kill than the Dark Octopusses in the reverse caverns. When your magic runs out, simply switch out one of the Bat Pentagrams for the Mana Prism, use it, and switch back.
More tricks, tips and cheats for this game are right here - Castlevania: Symphony of the Night cheats
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