EOE: Houkai no Zenya Cheats

To gain the Twin Dagger weapons complete the game on any difficulty then save after the credits. Load that game and they will be on EOE when you start. Best weapon(s) in the game.

Play the China-town level after getting the Katar.

Climb up the Chinese house that has the huge flame on the porch. When you are there, someone will surprise attack you (well, it won't be a surprize now, lol). Kill him and go to the opposite side of the part you climbed up to.

Go to the back of the house, but stay on the balcony. Jump to the building on the far side (all the way down, as far as you can see) and look around for another piece of paper. Walk into it, and you will unlock the 3 minute battle mode option.

Play the final level, Wisdom Headquarters, and advance until you have activated the main elevator.

Go to the library (located on the unrestricted side) and go up the stairs. After you've activated the main elevator, the door at the top opens. Proceed up the stairs and out onto the balcony. Jump across onto the chandelier, then onto the other balcony, and enter the room on the other side.

In the room, there are two enemies that can be easily defeated along with the third and final piece of paper in the game. Retrieve the piece of paper and letters will come on the screen telling you that you've unlocked Boss Battle Mode in the Bonus menu. You can access this mode by entering "Bonus" on the main screen and entering your file.