Start a new game and die 5x then exit and start a new game then you could choose easy mode
Beat the game in under 3 hours to get difficulty mode
Oni Spirit Mini Game
Collect 20 or more Flourites to unlock the Oni Spirit Mini Game.Ultimate Mode on HardBeat the Game on hard with any rank except for "S".
Successfully beat the twelve stages of the Oni Spirit mini game. Start a new game and you will have the Bishamon Sword, infinite supply of magic,99 soul absorbers, infinite bullets and burst bullets for Matchlock, and infinite arrows and fire arrows for the bow.
In the well, where the guy hangs upside down you go to the Dark Realm and if you beat 20 levels which is the last level you open the chest and you'll get the Evil Sword.
The Bishamon Sword
To gain the legendary Bishamon Sword, beat the Dark Realmin the well I think to get the Bishamon Ocarina. Go to the Evil Plate room in the "Keep" and after defeating Marcellus and the other monsters, you should see a gate made of bones. Use the Ocarina, and go into the room when the gate opens. Press up-left on the D-pad and the sword will come into your weapons arsenal.
Start game with unlimited ammo 99 soul absorbers and bishomon sword
Beat the game on any difficulty and gat a ranking of B or higher.When you get Oni Spirits beat all Twelve levels and u will get the code right.
How to get the great arrow
OK, here is how to get the Great Arrow. First you must be Kaide to get it. By now Kaide should have the sacred knife. To get the great arrow, the game will automaticly send Kaide, and you, to the gate that you unlocked with the decorated sword. Bugs will begin attacking you. Defeat the bugs and go through the first locked door on your left. The door you unlocked before with the fully enhanced green sword is now locked. After defeating the bugs, unlock the door strait infront of you. From there defeat a couple of bugs and demons. Go to the broken bridge after that and unlock the door in the room that follows the bridge. From there, you should find a hallway. Instead of going into the room infront of you, go to the room to the left of you. Go up the stairs and to your right and there you should find a trick treasure box. Open it and you get the Decorated Arrow. After that, go back down the steps and into the room I told you not to go into. Go past the statue and to your right, there you will find a pedestal containing the Great Arrow Take the Great Arrow off. After that the door you came in through will be locked and you can't use the Shinobi Kit.. After the door locks place the Decorated sword on the pedestal. This will unlock the door and the treasure chest in the same room that you are in. In side the treasure chest you'll find the Green Key that you'll use to unlock the door that leads to a boat that will take you to Samenoske.
Get the Ogre Armor
In order to get the ogre armor, the best looking and best armor in the game, you have to beat the Dark realm that is in the keep and has 10 lvls. If you beat it then you'll get the secret key now you go to where you got the decorated sword and press a on the huge door. you will get to a tower. Beat the six levels and then go to the main floor again. "talk" to the glowing statue and deposit enough souls to make it disappear. Keep on doing this 5 more times until you meat a warrior with armor. beat the warrior and he'll disappear, but the armor stays. go to the armor and now it's yours.
The Bishamon Ocarina uses
To get the Bishamon Ocarina you go to the man in the well and press the action buttona. If he ignores you that is because you haven't got the evil plate. That is another story. But when you get it got to the room in the castle where you see the big door that is like a bright blue, and then you put it in. When this happens the door will open and you will see Hecuba the bug lady. Well she is that lady you meet in the room with Kaede who acts like she is hurt. Well when you walk in the room the woman will drop Yumemaru, the little kid, and turn into the bug lady. Then the room will get really toren up and she will fly off. I think after that this door will come up and then this little star thing will fly up over the door. To get it off you have to have the great bow and the great arrow. Go to the man in the well and when he falls down out of the well this time he will ask you if you want to got to the Dark Realm. Say yes but be sure you have all of your weapons to the 3rd lvl and have the Matchlock Gun with burst bullets. Also you may want to have Two medicine's because you will be going through 20 lvl's of the Dark Realm. On about the 16th the room's will be turning purple. But when you get to the 20th LvL you will get the Bishamon Ocarina. Now the man in the well will only let you go up. Do it and go to the nearest save you can find because you might die. I prefer the one where the other creapy man falls out to ask if you wan't to go to the Dark Realm again. What I did was save at the magic mirror and get all of the power for my weapons then go into the Dark Realm in the same room you save and kill those little demons that are really easy to kill with the Fire Ord Sword. Only two hits. But when you get all of you energy back go to the same room and where you put the Evil Plate in it's spot. Before that you will try to fight that annoying little doll on the way. Don't. Just run on through her and to the door behind her. But go in that room and take out the Great Arrow and Great Bow. Samanosuke will shoot that little star off of the door and he will automatically go into the door. But inside is Marcellues. You have to kill him and then the Demon King will come out. I think I haven't got that far. But use the Bishamon Ocarina.