Clear the game with Leon once and save that game. Start a new game on another slot and enter the name @LLSKILL.
Leon will have all his skills when he begins the game.
There's a way to duplicate your items. Enter the castle and head to the door that leads to the Save Room and the room to the other 5 stages. In the hallway near the Save Room, look on the carpet for a green spot of color.
Go stand on it, facing the window and open up your subscreen and go to your item list. By scrolling through your item list each item mysteriously increases by one.
There is a second spot inside the Pagoda of Misty Moon where items can be duplicated (again). On the second floor hallway, stand near the second circle design on the carpet (on the map, it will be near the east side of the stage). Press START to enter the item screen and glitch away.
The hallway outside the VI Stone room allows items to be duplicated through the start menu (see Duplicator Glitch #2).
The hallway with two Red Ogres near the Pagoda of the Misty Moon save room allows for item duplication via the START menu (see Duplicator Glitch #2 for details).
There are 10 relics in the game:
Clear the game with any character and save that game. That game's character may head back to the stage select room and opt to try Boss Rush Mode, that is a time attack mode against all the bosses in the game in the order they appear in the Encyclopedia.
Clear the game with Leon once and save that game. Start a new game on another slot and enter the name @CRAZY.
Crazy mode is much harder than the normal game.
Clearing the game will unlock the Jade Mask for sale at the shop.
Clear the game with Leon once and save that game. Start a new game on another slot and enter the name @JOACHIM.
Joachim's game is played differently, and the character has no access to any weapons, armour, or health restoration items.
Clearing the game on Crazy Mode will unlock the Mobius Brooch in the shop.
Clear the game with Joachim once and save that game. Start a new game on another slot and enter the name @PUMPKIN.
The Pumpkin game starts the character off with all skills and the Vampire Killer, as well as increased stats. However, there are no subweapons available other than the initial subweapon.
Clear the game once with any character and save that game. The Music Box will be available for purchase in Rinaldo's shop for all future games (you only need to buy it once and save the purchase to that game).