Clair Obscur: Expedition 33 is filled with tons of secrets and side quests that players can complete to gain some unique rewards. Some may give you powerful weapons, while others offer new cosmetics that you can equip on your party members. While many players might not care about the side content, completionists who are after every single collectible in the game won't want to miss out on any of the side quests.

Players will meet Karatom in Gestral Village, where he is building the Ultimate Sakapatate. However, to complete the project, he needs the help of the Expedition to secure some Blue Mushrooms. If you're having trouble figuring out exactly where to find this resource to complete the quest, this guide will point you in the right direction.

How to Start Karatom's Quest in Clair Obscur Expedition 33

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To start Karatom's Quest, players must first reach the Gestral Village. From the Gestral Village - Entrance Expedition Flag, you'll have to take the first left through the Gestral Bazaar and come out the other side. You'll arrive at a large area, and on your left, you'll see a couple of Gestrals constructing the Ultimate Sakapatate.

Karatom is the tiny Gestral NPC standing at the base of the Sakapatate. Walk up to him and engage him in conversation. He'll ask you to look for Blue Mushrooms. Unfortunately, you can't get the item just yet.

Where to Find Blue Mushroom for Karatom in Clair Obscur Expedition 33

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The Blue Mushroom Quest Item is located in another area in Clair Obscur: Expedition 33 called the Esquie's Nest. However, the area is locked at this point in the story. To access the location, players must first complete the main quest in the Gestral Village. That means you'll have to talk to the village chief, Golgra, and take part in the Gestral Arena tournament.

Players must face the three Legendary Warriors and the Stranger. After defeating the enemies, talk to Golgra, and he'll tell you that the Eastern Gate from the village is open. Now, you're free to access the Esquie's Nest location.

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Head out of the Gestral Village and follow the newly opened path that was previously gated off. Esquie's Nest is located in the east. You'll also find a Lost Gestral nearby that you can talk to near the entrance of the new location.

Once you enter Esquie's Nest, head straight, and a cutscene will play out. There are a couple of paths here you can take with some items. To grab the Blue Mushroom, you'll want to head through the main central path.

Soon, you'll arrive at a large cavern with floating lanterns. Immediately turn right to find a Mime enemy in the lower area. Head down and go past the Mime to find the Blue Mushroom in the water. Once you've picked it up, you can use the climbing points near the bridge and head back the way you came to make your way back to the Gestral Village and deliver the item to Karatom. But the quest isn't over just yet.

How to Beat the Ultimate Sakapatate in Clair Obscur Expedition 33

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Handing the item over to Karatom in Clair Obscur: Expedition 33 completes one part of the quest. For the second part, you'll have to take on the Ultimate Sakapatate that you helped build. To make matters worse, this is a one-on-one duel between the Ultimate Sakapatate and Gustave. It also hits like a truck and has a variety of moves, so you'll want to time your parries perfectly to take it down.

The fight has three distinct phases where the enemy adds new moves to its arsenal. The first phase only has two attacks that players need to worry about:

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  • "Ultimate Sakapatate attacks"

    A three-hit combo where the Sakapatate swings its right-hand weapon twice and ends with a slash. Parry or dodge the first two hits and jump the final slash. You can also counter immediately after the jump attack for some free damage.

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  • "Ultimate Sakapatate slams the ground"

    A slam attack with its weapon that's hard to parry. We recommend dodging this one when you see the prompt. If it connects, it applies a Mark debuff.

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Once you manage to get the boss's health down to about 75% HP, it will enter the second phase. You'll see a message flash across your screen "Ultimate Sakapatate takes the fight seriously and raises its shield". It will gain two more attacks at this point of the fight.

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  • "Ultimate Sakapatate slams its shield"

    The boss will first do a spinning jump. It will then slam its shield down on the player. It can be parried and dodged easily.

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  • "Ultimate Sakapatate fires its canon"

    Fires three projectiles from the shield's canon. You'll need to parry all three to trigger a counter. Getting hit applies Burn.

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With less than half of its health remaining, the Ultimate Sakapatate will enter the final phase of the fight. The text message will read, "Ultimate Sakapatate unleashes its full power" and will gain an extra move:

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  • "Ultimate Sakapatate launches some wierd electric things"

    The Ultimate Sakapatate will launch some electrical projectiles that can deal a lot of damage. The timing isn't too hard to parry, but dodging is also an option if you're not feeling entirely confident.

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Since this is a one-on-one duel, you'll want to equip Pictos that heals you. Alternatively, Gustave has a few healing skills that might be worth using. The boss is resistant to electrical damage, which can drag out the fight. However, Overcharge is still your best friend in this fight, allowing you to break the enemy once the bar fills up.

Once Broken, you have a chance to aim at the left shoulder of the Sakapatate to hit its weak point. After landing a few hits, the boss will lose its shield, and the rest of the fight will become much easier.

The boss will recover quickly, so make sure you quickly take out the weakpoint using free aim.

Karatom Quest Rewards in Clair Obscur Expedition 33

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For completing the Blue Mushroom side quest for Karatom, Clair Obscur: Expedition 33 players will earn:

This isn't necessarily the hardest side quest in Clair Obscur: Expedition 33, but it's one you won't want to skip if you're aiming for 100% or just looking for a cool new outfit and an optional boss fight. As long as you manage to get your parry timings right, the boss should go down without too much trouble.

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Turn-Based RPG
JRPG
Fantasy
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Systems
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Top Critic Avg: 92 /100 Critics Rec: 97%
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Released
April 24, 2025
ESRB
Mature 17+ / Blood and Gore, Strong Language, Suggestive Themes, Violence
Developer(s)
Sandfall Interactive
Publisher(s)
Kepler Interactive
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WHERE TO PLAY

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

Engine
Unreal Engine 5
Number of Players
Single-player
Steam Deck Compatibility
Playable
PC Release Date
April 24, 2025
Xbox Series X|S Release Date
April 24, 2025
PS5 Release Date
April 24, 2025
Genre(s)
Turn-Based RPG, JRPG, Fantasy
OpenCritic Rating
Mighty
X|S Optimized
Yes
File Size Xbox Series
42.33 GB