Ninja Gaiden Cheats

Plasma Saber
Successfully complete the game under the normal difficulty setting. A new sword called the Plasma Saber (which resembles a lightsaber from Star Wars) will now be unlocked.

Plasma Saber Mk. II
Successfully complete the game under the very hard difficulty setting.

Skip FMV sequences
Press Start, A, Start to advance past an FMV sequence. Note: This does not work all of the time.

All FMV sequences
Successfully complete the game under the normal or hard difficulty settings to unlock all FMV sequences.

Very hard difficulty
Successfully complete the game under the normal or hard difficulty settings to unlock the very hard difficulty setting.

Classic Ninja Gaiden mini-game
Give 50 scarabs to Maramusa.
Classic Ninja Gaiden 2: The Dark Sword Of Chaos mini-game:
Get a "Master Ninja" rank in all levels under the normal difficulty setting.

Classic Ninja Gaiden 3: The Ancient Ship Of Doom mini game
Get a "Master Ninja" rank in all levels under the hard or very hard difficulty settings.

Special attack
Press Y + B to unleash a super attack that will seriously hurt anyone.

Kill enemies quickly
To kill an enemy very fast, jump towards them fairly close using A, then quickly tap Y immediately before you hit them. You should either throw them with the guillotine throw or slice their heads off. If they keep trying to get off the ground, tap Y again to pin them down or cut their head off. This is useful when you need some extra money, are almost dead, or when you just simply want to get through the section quickly because of frustration.

Finishing kill
While a foe is on the ground, walk up to it and press Y. This will instantly kill almost any foe.

Defeating Alma
To defeat Alma (red greater fiend), equip the Vigorian Flails. It is recommended that they be completely leveled up. With the Vigorian Flail, you can still hurt Alma greatly even when she is in the air. Note: The shuriken, incendiary shuriken, and bow cannot hurt her; they just bounce off.

Defeating Black Spider Ninjas
Jump off the wall and use the X attack to smash down on top off them. Use this repeatedly, but be careful of the incendiary shurikens that they throw.

Defeating Zombies
Use the diving Y attack that takes off their head. It will not kill them, but they will be blind.

When facing the zombies under the cathedral and one of them happen to lunge at you and starts biting, press X + A as quickly as possible to kick it off and reduce the amount of damage that you receive.

Unlock safe in monk's room
To unlock the safe in the monk's room for the first time you need to enter this combination: press Analog-Stick Left until you reach "2", then press X. Press Analog-stick Right until "7", then press X. Press Analog-stick Right until "1", then press X. Press Analog-stick Left until "2", then press X. If done correctly, each time you press X a blue light should turn on, until you see four blue lights and the elevator to the underground cemetery opens. The combination is the Monk's birthday as he states in the diary (27th day on the 12th month). You can now get the Book Of The Eons from the safe.

Easy Essence
Killing a foe without using Y will give you five times more Essence.Information in this section was contributed by VMoB36. In Chapters 6 and 7, you will encounter the skeleton dino Boss. After you defeat him, climb down towards the new opening he made in the floor, but stop at the save location. Turn around with your Nunchakun and jump up to the bats. Once you reach them, kill no more than two to four bats and charge your super attack taking in two Essence Orbs. Then, unleash the attack and gather up to 2,000 Essence each time. To replenish the bats, jump back to the save point and repeat. The bats will not hurt you enough to kill, and will randomly give you health. Once you gather all the Essence desired, you can whatever desired. The maximum amount of Essence that can be held is 99,999.

The "Easy Essence" trick that can be done on Chapters 6 and 7 also works on Chapter 10. Go to the room in which you come down the ladder at the start of the level. It is also the room that leads into the first aqueduct.

More items
Do not pass up the dead ninjas that are lying around. They have items on them.

Obtaining the War Hammer
After defeating the flying female Boss that breaks through the stained glass, immediately when you start the next level run back into the doors. Go past all the debris and you can find the War Hammer in the area where you fought the Boss.

Obtaining rewards
Talk to the shopkeeper every time you see him. This is when he will collect your Golden Scarabs. He will give you rewards after every several scarabs.

Longer wall running
When you are about to fall from wall running too far, jump forward towards the wall again. You will start to wall run again.

Rankings (demo version)
There are four rankings available in the demo version: Lesser Ninja, Greater Ninja, Head Ninja, and Master Ninja. To get a "Master Ninja" rank, you must complete the game in about six to seven minutes. For a "Head Ninja" rank, complete the game in about seven to eight minutes. For a "Greater Ninja" rank, complete the game in about eight to fifteen minutes. For a "Lesser Ninja" rank, complete the game in more than fifteen minutes. For best speed, do not try to kill every enemy. Run from all the non-mandatory enemies, defeat the boss with the big sword, using Y counters during his 3-hit combo.e to unlock them for Arcade play.