Ninja Gaiden Sigma

Bonus missions:
To unlock bonus missions, go to the mission mode screen and press up, down, left, down, right, up, square.

Mission mode:
To unlock Mission mode you must beat Story mode on Normal difficulty.

Unlockable difficulties:
Unlock the following difficulty levels by completing the corresponding tasks:

DIFFICULTY LEVEL - HOW TO UNLOCK
Hard - Beat the game on normal.
Very Hard - Beat the game on hard.
Master Ninja - Beat the game on very hard.
Ninja Dog - Die 3 times in a row.

Unlockable costumes:
Unlock the following costumes by completing story mode on the corresponding difficulties:

COSTUME - HOW TO UNLOCK
Ashtar Ryu costume - Complete story mode on hard difficulty.
Classic Ryuken costume - Complete story mode on normal difficulty.

Easy money in imperial city infiltration:
There
is a guy sitting at the shop near the town gate. Throw Shurikens at him
to earn 100 yellow essence each time you hit him. Only hit him nine
times. If you hit him 10 times he will die. Leave through the gate and
re-enter. Repeat as desired.

Hit Muramasa:
Attack
Muraamasa at his store and he will begin dropping yellow essence. Do not
overdue it. If you hit him too many times he will fall over and you get
game over. Save before attempting this to be safe.

Easy Essence in eighth mission:
At
the last save point there is a door that leads to a dead end alleyway.
Enemies will constantly respawn on both sides of the door in the alley.
Continually leave and re-enter the doorway as you kill the enemies to
collect essence.


Infinite life of the Gods and Elixirs glitch:
While
playing as Ryu, at the beginning of Chapter 7 pick up the two chests
near the save point. They will respawn in other missions giving you
almost unlimited Life of the Gods and Elixirs. You must have access to
Tairon's Monastery Annex Save Point.

Easy Yellow Orbs in Ch. 18:
In
Chapter 18, after reaching the top of the tower save the game. Use the
black floating panel next to the save point to refill your life and
Ninpo. Go to the top of the ramp. Equip the "Art of the Fire Wheels"
spell. The fish will jump and die upon hitting your shield giving Yellow
Orbs.

Unlimited Yellow Orbs in Ch. 3:
In Chapter 3,
get the key card on the lower level. Go down one of the spiral
staircases off the main deck to save the game. Then, go back to the
beginning of the game. In the Living Quarters at the end of the hall,
use the keycard to enter the door. Kill as many enemies as you can
without dying, and make sure to have a few Elixirs of Spiritual Life
that you can use. After exiting, save the game and restock on Elexirs at
the shop. Repeat as desired.

Unlimited Yellow Orbs in Ch. 12:
In
Chapter 12, save the game at the save point near the door that leads to
a large statue of a girl. Turn around, take a few steps, and follow the
path on the left. Enter the small door and press L2 to display your
Karma. Kill all the scorpions and remember exactly how many you killed.
It will appear on your Karma display. Exit and then re-enter. This time
do not kill all of them, but leave a few alive. Exit and re-enter as
many times as you want.

Golden Scarab rewards:
Collect
the following amount of Golden Scarabs under the specified difficulty
setting to unlock the corresponding bonuses at Muramasa's shop. Note:
You cannot collect Golden Scarabs while playing as Rachel:

Normal difficulty
GOLDEN SCARABS - BONUS
1 Golden Scarab - Life of Gods
5 Golden Scarabs - Armlet of Potency
10 Golden Scarabs - Lives of the Thousand Gods
15 Golden Scarabs - Spirit of the Devils
20 Golden Scarabs - Dabilahro
25 Golden Scarabs - The Armlet of Celerity
30 Golden Scarabs - The Armlet of Benediction
35 Golden Scarabs - Great Spirit Elixir
40 Golden Scarabs - Armlet of Fortune
45 Golden Scarabs - Jewel of the Demon Seal
50 Golden Scarabs - Plasma Saber MkII

Hard difficulty
GOLDEN SCARABS - BONUS
1 Golden Scarab - Technique Scroll Counter Attacks
5 Golden Scarabs - Technique Scroll Izuna Drop
10 Golden Scarabs - Technique Scroll Guillotine Throw
15 Golden Scarabs - Windmill Shuriken
20 Golden Scarabs - Wooden Sword
25 Golden Scarabs - Dabilahro
30 Golden Scarabs - Armlet of Celerity
35 Golden Scarabs - Spear Gun
40 Golden Scarabs - Armlet of Benediction
45 Golden Scarabs - Armlet of Fortune
49 Golden Scarabs - Plasma Saber Mark II
50 Golden Scarabs - Dark Dragon Blade

Very Hard difficulty
GOLDEN SCARABS - BONUS
1 Golden Scarab - Art of the Inferno
5 Golden Scarabs - Spirit of the Devils
10 Golden Scarab - Art of the Ice Storm
15 Golden Scarabs - Jewel of the Demon Seal
20 Golden Scarabs - Spirit of the Devils
25 Golden Scarabs - Jewel of the Demon Seal
30 Golden Scarabs - Armlet of Fortune
35 Golden Scarabs - Jewel of the Demon Seal
40 Golden Scarabs - Art of Inazuma
45 Golden Scarabs - Spirit of the Devils
49 Golden Scarabs - Plasma Saber MkII
50 Golden Scarabs - Dark Dragon Blade

Master Ninja difficulty
GOLDEN SCARABS - BONUS
1 Golden Scarab - Smoke Bomb
5 Golden Scarabs - Elixir of Spiritual Life
10 Golden Scarabs - Great Spirit Elixir
15 Golden Scarabs - Elixir of the Devil Way
20 Golden Scarabs - Great Devil Elixir
25 Golden Scarabs - Smoke Bomb
30 Golden Scarabs - Ayane's Ration
35 Golden Scarabs - Fragrance of Dayflower
40 Golden Scarabs - Ayane's Ration Bundle
45 Golden Scarabs - Fragrance Hydrangea
49 Golden Scarabs - Plasma Saber MkII
50 Golden Scarabs - Dark Dragon Blade

Windmill Shuriken:
You
can get the Windmill Shuriken when you first enter the Pleasure Street
area. Walk forward down the street and defeat the three Black Spider
Ninjas. Continue forward to reach a large clearing. Do not go too far
out into it yet. Otherwise some motorcycle soldiers will attack you.
Instead, turn to Ryu's left. You will see some smooth areas on the wall
bordered in blue going down an alley. To get the shuriken, wall run and
jump to each of them, getting progressively higher each time, and land
on a raised platform on the last jump. This may require a few attempts.
Sometimes it seems as though you will fall off even if it appeared like
you should have made it. There is also a black object up here that will
fill your health and Ninpo. It can also be used at a later time if
needed.

How to defeat the motorcycle troops:
To easily
defeat the motorcycle troops, use the Guillotine Throw to pull them off
the bikes. Another good way is to jump around frequently, trying to
avoid being hit, and to attack them with a projectile weapon when you
land. The motorcycle soldier with the sidecar cannot be grabbed with the
Guillotine Throw.