In Ninja Gaiden 4, increasing your max health will be one of the best ways to ensure you can endure through the ever-increasing challenges the game presents. To increase your maximum health in NG4, you'll need to collect two specific items: the Black Scale and Phantasmal Herb. These items are found throughout the game, and are acquired through a variety of methods. In this guide, we'll show you where to find all Black Scales and Phantasmal Herbs in Ninja Gaiden 4.

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How to Increase Yakumo's Max Health in Ninja Gaiden 4

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Black Scales and Phantasmal Herbs:

The process for increasing the size of the health bar in NG4 is simple. First, you need to collect one unit of two specific items. The first item is a Black Scale, and the second item is a Phantasmal Herb. Once you collect one of each item, NG4 will automatically combine them into a new upgrade item called the Dragon Lord's Grace.

When a Dragon Lord's Grace is successfully created, Yakumo will automatically consume the item, increasing the size of his health bar by a small amount. Judging by information provided in the game, it appears that you can increase Yakumo's max health ten times, which means there should be ten Black Scales, and ten Phantasmal Herbs.

Many of the Black Scales and Phantasmal Herbs are acquired through side-missions. You must make sure to accept the side-missions at the start of each chapter. Check the first DarkNest Terminal, and then each subsequent terminal, for new missions. Also, remember to turn in your missions to any DarkNest Terminal once they are complete. You must do this to receive the reward.

Where to Find All Black Scales in Ninja Gaiden 4

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All Black Scale Locations:

Scale #

Location/Chapter

Image

Black Scale 1

Chapter 2: After making your way up the rooftop steps with floating drones, you'll face an elite enemy before jumping on a yellow rail. The first Black Scale is in a chest at the end of the short alley to the left if you are facing the elite enemy head-on.

Black Scale 2

Chapter 3: Locate the 'Rotting Charm' for the associated side-mission. You'll find the charm later in the chapter, once you've entered the shrine. As you make your way through, you'll encounter an area after locating the Food Thief that looks more like the outside, with a large blue cargo container. The charm is in a chest behind the container.

Black Scale 3

Chapter 4: While fighting through the chapter, you'll find a chest at the top of a set of stairs, guarded by two spear-wielding enemies. The scale is in the chest. The area appears to be a shrine or memorial of some kind, and as such it's hard to miss.

Black Scale 4

Chapter 4: Complete the 'Secret Supplies' mission. You can find the supplies in a special high-tech chest that has a unique glow. It is found in a large clearing where the wreckage of a high-tech flying machine is encountered. There are several chests in the area, but the secret supplies stand out.

Black Scale 5

Chapter 8: Complete the 'Antiquated Currency' mission. After collecting the Pond Strider, you'll make your way through an obstacle course. Near the end, you'll encounter two of the large fish fiends with portals in their mouths. Look for a large 'keep out' sign painted on a wall behind one of the fish. After defeating that fish, there will be a chest directly behind it that contains the currency. Note: If you don't go back to a terminal to turn this in before leaving, it will be a bit before you can do it in Chapter 9. You'll find Black Scale 6 before finding the next terminal.

Black Scale 6

Chapter 9: In this chapter, you'll encounter open areas that you can navigate with the Pond Strider. After clearing the first open area, slide under the gate into the second open area. In the second area, you'll find a water channel that leads you back to an area similar to the Purgatory location in the first open area. There are several tough enemies here, and the Black Scale can be found in a chest in the middle of the land mass.

Black Scale 7

Chapter 12: After the first combat encounter in Chapter 12, you'll head up a set of stairs and see the next door you must pass through. Just before reaching the second set of stairs that lead to the door, turn right, and you'll see a chest against a fence and near a stack of pallets. This chest contains Black Scale 7.

Black Scale 8

Chapter 12: Complete the "Classified Documents" mission — Near the end of the chapter, you'll reach an area where the lights suddenly turn red. This will occur just before the entrance to a long series of corridors that lead to the elevator ride that takes you to the end of the chapter. Just before the door, turn right, and you'll find a chest along the wall that contains the documents. Turn them in at the final DarkNest Terminal to receive the Black Scale.

Black Scale 9

Purchase the Mystical Fower Tally for 20,000 NinjaCoin from a DarkNest terminal in Chapter Select after completing the game. This unlocks various quests, including "Find the Flower Kunai in Sky City Tokyo" - which you must complete to unlcok Black Scale 9.

Coming Soon

Black Scale 10

Mysticl Flower Tally required. Complete "Find the Flower Kunai in the Drowned District" to acquire the final Black Scale.

Coming Soon

Where to Find All Phantasmal Herbs in Ninja Gaiden 4

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All Phantasmal Herb Locations:

Herb #

Location & Chapter

Image

Phantasmal Herb 1

Chapter 1: Collect the Data Chip near the three chests later in one of the outdoor combat arenas. There are three chests in a row that are very hard to miss if you look. You'll receive the first Phantasmal Herb when you turn in the mission at a DarkNest Terminal.

Phantasmal Herb 2

Chapter 3. While in a circular chamber in the shrine, you'll see a very slender alcove with a chest at the top of a set of stairs. The herb is found within the chest.

Phantasmal Herb 3

Chapter 5: Locate and turn in the 'Heirloom Knife' for the associated mission. You'll find the knife behind one of the large enemies that spits fireballs as you are gliding up the mountain. It will be near the end of the climb, but this is easy to miss, so make sure you take them all out and check behind them. It appears as a small pillar of light from a distance.

Phantasmal Herb 4

Chapter 5: Locate and turn in the 'Tengu Offering' for the associated mission. You'll sign up for this mission earlier, but it is completed in Chapter 5. After defeating the statue boss, which looks like the statues you've been destroying up to this point, you'll want to look left as soon as you exit the building. The Tengu Offering will be on the ground. It's very dark as you exit, so look for the small pillar of light.

Phantasmal Herb 5

Chapter 6: At the start of the level, after landing on the bridge, head in the direction of the DarkNest Terminal and Tyran's Raven. To the left of the terminal, you'll see two chests near the broken remains of an old suspension bridge. The chest on the edge of the cliff contains

Phantasmal Herb 5.

Phantasmal Herb 6

Chapter 9: Find all 3 'Beautiful Minerals'—these are items spread throughout Chapter 9. All of them are found in chapter nine, so make sure to thoroughly explore each area. They are always out in the open, marked by pillars of light like non-chest mission items.

Phantasmal Herb 7

Chapter 11: As you make your way through the first stage of the Dragon's Maw, you'll find yourself riding on rails. This herb is found in a chest on a platform off to the left of a rail. Just before you jump on the correct rail, you'll climb a large wall with E-4 printed on it. The rail has a blue speed-boost ring as soon as you jump on it. After jumping on the rail, you'll have to jump over several obstacle rings, then slide under one of the gates. Immediately after sliding under the gate, you'll see the platform off to the left. Jump to it, defeat the enemies, then open all chests.

Phantasmal Herb 8

Chapter 19: After collecting the Dark Dragon Blade, make your way to the DarkNest Terminal on the outside of the ruined building. From there, make your way up the stairs and across the gap to the Flying Bird Flip wall. Facing the building, look behind the wall on the left and you'll find the chest containing this herb.

Phantasmal Herb 9

Mystical Flower Tally required. Purchase the Tally in Chapter Select after you complete the game. Unlocks "FInd the Flower Kunai in Fuuhaku Sanctum." Complete this mission to get herb 9.

Coming Soon

Phantasmal Herb 10

Mystical Flower Tally required. Complete "Find the Flower Kunai in the Dragon's Maw" to acquire the final herb.

Coming Soon

Spoiler Alert! Major story spoilers below!

All Lives of the Thousand Gods in Ninja Gaiden 4

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Starting with chapter 15, players will take control of Ryu Hayabusa, the famed ninja at the heart of the NInja Gaiden series. For the brief time you are in control og him, you will find Lives of the Thousand Gods instead of Dragon Lord's Grace. Here is where you find all of them:

All Lives of the Thousand Gods Locations:

Item #

Location

Image

Lives of the Thousand Gods 1

Chapter 15: After going through the door at the back of the stage, drop into the large tunnel. After landing, turn around, and you'll find the first Lives of the Thousand Gods in a chest against the wall.

Lives of the Thousand Gods 2

Chapter 16: After crossing the large chasm by using the drones early in the mission, defeat the Burabura Lantern Deamons, then head left and cross the gap. You'll encounter a large pot-like enemy that throws large globs of purple poison. After defeating the enemy, head to the end of the path and you'll find the second Lives of the Thousand Gods in a chest.

Lives of the Thousand Gods 3

Chapter 18: In the chamber with the A-frame bridge, you'll this Max Health item in a chest against the wall after crossing. Turn right instead of using the Flying Bird Flip wall to find the chest.

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Ninja Gaiden 4 Tag Page Cover Art
Ninja Gaiden 4
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9 /10
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Released
October 21, 2025
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WHERE TO PLAY

SUBSCRIPTION
DIGITAL
Checkbox: control the expandable behavior of the extra info

ESRB
Mature 17+ / Blood and Gore, Intense Violence, Strong Language, Suggestive Themes
Developer(s)
Platinum Games, Team Ninja, Koei Tecmo Games Co., Ltd.
Div
Publisher(s)
Xbox Game Studios
Prequel(s)
Ninja Gaiden 3
Franchise
Ninja Gaiden
Number of Players
Single-player
Steam Deck Compatibility
Unknown
PC Release Date
October 21, 2025
Xbox Series X|S Release Date
October 21, 2025
PS5 Release Date
October 21, 2025
Genre(s)
Action, Adventure, Hack and Slash
Platform(s)
PlayStation 5, Xbox Series X|S, PC
OpenCritic Rating
Strong