Alternate costumes:
Successfully complete the game under the hard difficulty setting to unlock 
Samanosuke's alternate costume. 

Successfully complete the game with an S rank by getting all of the Fluorites to 
unlock Kaede's alternate costume. 

Speed trial mini-game:
Collect over 20 Fluorites (blue rocks) during game play. Complete and save the 
game. The Onimusha Spirits speed trial mini-game will be unlocked. Successfully 
complete the mini-game to unlock the "Ultimate mode" option, which allows the 
game to be played with the Bishamon Sword, unlimited ammunition, 99 Soul 
Absorbers, and automatic magic regeneration. 

Easy mode:
Start a game and die about five times under the normal difficulty setting. After 
enough deaths, a message will appear, stating that a new easy mode is open. 
Note: You cannot achieve an S rank when playing in easy mode. 

Difficult mode:
Successfully complete the game with a time under three hours. 

Ultimate mode:
Successfully complete the game under the hard difficulty setting with any rank 
except for S. Alternately, successfully complete the Onimusha Spirits mini-game. 

X rank:
Successfully complete the game in difficult mode without using the Bishamon 
Sword, get and wear the Ogre Armor, and collect all of the Fluorites. 

Bishamon O Flute:
There are two places in there game where a very strange man hanging from the 
ceiling by his feet stares at you and ignores you. Later in the game, after you use 
the Evil Plate and open the door, he will talk to you. The man will now take you 
(whenever desired), to the Dark Realm. In the Dark Realm, kill monsters until two 
portals open; one to go up and one to go down. Keep going down to the last level 
(9th or 10th) while collecting all the items en route. Open the box on the deepest 
level to get the Bishamon O flute. Keep the flute just before the last fight with the 
Demon King. It is needed to get the Bishamon Sword. 

Bishamon Sword:
In the Demon Realm (just after you destroy the Ultimate Creation) is a save 
mirror and three doors. Go to the door that resembles an iron gate. It will not 
open at first. Use the Bishimon O flute on it and enter. Go to the Bishimon Sword 
jutting out of the Skull Demon wall object and take it. It is more powerful than all 
three of your weapons put together, and it has speed. The sword also has an 
unlimited supply of magic. 

Fire Orb and Bow:
After defeating Reynaldo (the weird squirmy thing), go to the fire to the left where 
the zombie eating the human was to get a Fire Orb. Before leaving to the castle, 
enhance the Fire Orb to level 2.To get a Bow in the castle, go to the place where 
the bucket is located and cut it. Go upstairs and there will be a trick crate. Open it 
to get the Bow. Make sure you have normal arrows before using the Bow. You can 
find 10 normal arrows when you barely enter the castle and see the samurai and 
the kid. 

Ogre Armor:
Go to the Demon Realm in the fortress and battle all the way to the last level. Get 
the secret key in the chest. Leave the fortress and go to where you found the 
decorated sword. Place the key in the door and proceed to find the Ogre Tower. 
Battle through all four levels then fight the Ogre Armor Samurai at the top of the 
tower (fire works best). Defeat him and receive the Ogre Armor.

Holy Armor:
Go to the room where you and Keade get trapped in and you have to pull the 
levers. Go through the levers. The chest that was in the corner behind the bars 
can now be reached. Inside the chest is the Holy Armor. 

Better gauntlet:
Reach 20,000 souls and when you go to enhance you will have a better gauntlet. 
Go when you have 50 to get the Golden Ogre Gauntlet. 

Capture 50,000 souls to get an even better gauntlet. 

Enhancing:
When enhancing, collect about 25,000 souls. The number next to the soul meter 
should say 25. Enhance all of your weapons and Orbs to level two. After collecting 
the Wind Orb, use the remaining souls to bring that to level three, since it is weak. 

Save your green and red mana for the fourth sword. It can be found just beyond 
the destroyed master's house (level four or five). By saving points, you can build 
the weapon up to full immediately. 

Trapped floor sequence: 
When you get into the part where you have to go through traps, you will get to a 
trapped floor section. When you get here, you will see trapped floor parts marked 
with "X"s and "T"s. They are set in a random pattern each time. While walking 
across, you will notice that each different trap square makes other normal or trap 
squares fall in a certain direction (diagonally, up, down, left, or right). Also notice 
that they are always in an order to where you can get through. If you do not like 
the selection as it currently appears, exit the room and go back in to change it. 
Your main objective is to get to the square with an "O".

Great armor:
There is a chest behind the waterfall containing the Great armor. 

Metal armor:
Get the Fire Orb to level 3.Go to the same place where you played as Kaede last. 
You should see a ladder. Go up the ladder and then open the door with your level 
3 Fire Orb. You will be in a room with another ladder. Climb down and you should 
see a magic mirror. Next to it are two doors. Go through the one nearest to the 
magic mirror. Fight a demon, then go through the door on the right. Get the gear 
and go to where you fought the demon. Go through the door and you should be in 
a room with blowing fire jets. Pull the tab and run to the other side. Open a 
cupboard and put the gear in place. An intermission showing a door opening up will 
appear. Go in the room and you should find a box. The metal armor is inside.

Medicines:
Just before fighting Fortinbras, when you are going down the spiral staircase, there 
are two Medicines. One is near a light about halfway down, and the other is near 
the blocked off area at the bottom. They are difficult to see.

Extra red souls:
When fighting enemies around the floating blue skull-ball things, allow them to 
absorb the souls that are released when you slay an enemy. When you kill the 
skull-ball, you will get many more red souls than if you had absorbed them directly 
from the demon. 

At the end of the game, when you are walking down the spiral pit, you will reach a 
pink and black blob that squirts out the "squid" monsters. Stand slightly to the left 
of where they land. When they are getting up (low enough that they are off-
balance, but high enough that your foot can reach them), kick them over and stab 
them when they are laying down. You can easily get your red soul bar filled up 30 
times using this technique. 

Easy souls:
If you are low on health at the end of the game before facing the Boss go to the 
entrance of the keep for some battles. By now they should be easy -- just absorb 
the souls to raise your health 

Defeating Ayame:
Ayame is one of the most troublesome characters in this game. Although it seems 
she is impossible to kill, there is a way to put an end to this nuisance. Ayame is 
susceptible to magic attacks only; therefore you have to attack her at a moment 
that you are fully charged with both energy and magic. Start by performing all of 
your special magic attacks, one sword at a time. Once your magic attacks run out, 
be prepared to block extensively while charging the magic attack of any of the 
weapons you have used. You can accomplish this by blocking. Be prepared to 
move to the other end of the room to give yourself some room to maneuver. Once 
she stops to perform one of her attacks, move forward and attack her with your 
charged-up weapon. Even if your weapon is not fully charged, be sure to attack 
her. She becomes invisible whenever the attack is not magic driven. If this 
happens, she will not be able to inflict any damage on you. Make sure to absorb 
any magic she releases. Continue this until she is dead.

Defeating Marcellus:
At the end of the game you should have all weapons and orbs at the maximum. 
When fighting Marcellus again, kick him and use the Thunder Orb's magic. For 
some reason, this is stronger than his other attacks. 

Defeating Fortinbras:
Start off by doing any type of attack that will make Fortinbras fall to the ground 
(special attacks will make this quick and easy). From this point on, just keep 
kicking him to death. This will take some time. You will never get hit, plus he will 
not be able to attack you if you can keep the chain kicks going. 

Use this strategy if you have only your three normal weapons, and not the secret 
sword. Kick him, then slash him with the Enryuu Fire Sword. It is the strongest. 
Give him about five kicks and then deliver a Thunder Orb magic. Repeat this until 
you have no more Thunder magic remaining. Then, use the Wind Orb magic to 
knock him down. Use the Fire Orb and some kicks. Most of his attacks are easy to 
dodge, except the fire. 

To avoid being hit by Fortinbras' fire attack, just go as far as you can backwards.

Defeating China Dolls:
Note: This trick requires using as much mana as you think you can spare. In every 
place you fight one of the china dolls, you have plenty of room to run around. 
They try to bite when you first wake them up. When you wake them up, block and 
back away as quickly as possible. Try to get to an area where you can put them 
into a corner. Keep using the Wind Orb's magic attack. It helps to have it fully 
charged. You can also use the other Orbs, but Wind does the most damage. Then, 
equip the Lightning Orb, which has a fast attack that is nice to have. Keep blocking 
and charging your attacks. It will at times, just keep blocking until it stops then 
release your attack. After about two minutes it should die.

Defeating archers:
Use the following trick to save arrows/bullets and health when facing archers. To 
kill archers on roofs without being in their line of fire and using up your arrows or 
bullets, run directly under them where they cannot shoot you and use a Wind spell. 
It will reach high enough to destroy them in one blow. If another enemy is directly 
under the archer, you can use a Lightning spell on that target and it will kill the 
archer directly above him as well. You can now save all but two of your arrows 
and all of your bullets for the last three Bosses, where they are very useful. 

Defeating Chameleons:
To make short work of Chameleons, equip the Lightning orb, press R, and run 
straight at them as soon as they appear before they uncloak. They will pause 
before they attack when they first come in. You can get in a Lightning spell as soon 
as they uncloak and wipe them out before they have the chance to do any 
damage. If you run out of magic, keep the Lightning sword equipped and block. Do 
not attack while they are using their sword on you, as they sometimes do a double 
slam and if you try to counter you will get hit. Wait for them to either uncloak at a 
distance and use their ring attack, block, then run straight at them holding down R 
and counter; or jump up and attack you, block, then counter while they are getting 
up from their crouch. If you do this quickly enough, you can get an instant kill. 

Double Dark Realm rewards:
If you are proficient in the Dark Realm, go through it twice, once from the Sentry 
Box room and once from the well in the west area. You will only get the Bishamon 
Ocarina and the Flourites the first time, but you can pick up Herbs, Medicines, and 
another Talisman on your second trip through. 

Blinking eye:
When you have an Orb in your gauntlet, stand still for a few seconds and the eye 
will blink. 

What's Your Grade? 
Genma Onimusha allows you the opportunity to rate your progress, based on a 
series of points. The perfect score is 30, meaning you have to score all available 
points in three categories: 

Time taken to complete 

Up to 3 Hours= 10 points
3-4 Hours= 7 points
4-5 Hours= 5 points
5 or more Hours=3 points 
Number of demons killed 

0-399= 3 points
400-499= 5 points
500-599= 7 points
600 or more= 10 points 

Number of souls collected by the gauntlet 

0-34,999= 3 points
35,000-44,999= 5 points
45,000-54,999= 7 points
55,000 or more= 10 points 

The points add up as follows: 

0-9= D
10-17= C
18-24= B
25-29= A
30= S