Jujutsu Zero Guide: How to Unlock Rika

The Copy skill, added with the Yuta update, is arguably the most flexible ability in Jujutsu Zero. Rooted in Rika's powers from the Jujutsu Kaisen series, it lets you permanently absorb and reuse moves from any boss or NPC you kill while in Rika Manifestation state. You can hold up to four copied skills at once, swapping them out whenever you want a different set of stolen abilities. Getting there takes some grind, but the payoff, using moves like Dismantle from Sukuna or Maximum Meteor from Jogo against other bosses, makes it worth the effort.

What do you need to unlock Copy (Rika)?

Two prerequisites before you can even start the unlock process. First, pull the Rika Cursed Technique from the gacha banner. Second, push that technique to 100 Mastery through quest grinding. Both are mandatory.

Rika skill tree in Mastery menu

At 100 Mastery, you unlock the Copy node in the Rika skill tree inside the Mastery menu. Activating it requires four specific materials:

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Domain Fragment and Heavenly Fragment drop from the same crate pool. Farm higher-grade crates to knock out both materials at once.

How to get Memory Shards

Memory Shards come from Past Rika, an NPC in the top-left corner of the map. She gives three one-time quests: Memories I, Memories II, and Memories III. Each quest sends you to collect specific memories scattered around the world. Each completion rewards one Memory Shard.

These quests are not repeatable, which actually simplifies things. You need three shards total, and there are three quests that each give one. Finish all three and this material requirement is done permanently.

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Do not skip the Memory quests early. Complete them as soon as Past Rika offers them so the shards are already banked when you hit 100 Mastery.

How to get the Binding Jewel

This is where the real grind lives. The Binding Jewel drops from the Yuta mini-boss at 2%, so expect multiple runs before it shows up.

Steps to farm him:

Talk to the Rika NPC to spawn the Yuta mini-boss.
Travel to the top-left corner of the map, between the Awakened Lightning God and the St. Patrick's Event Shop.
Kill him. The fastest strat is summoning Rika and spamming M1 attacks until he drops.
If the Binding Jewel does not drop, repeat the quest. There is no lockout.

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At 2%, the Binding Jewel can take dozens of attempts. Do not tunnel vision on this one material. Work on the Memories quests and crate farming at the same time to stay productive.

Yuta mini-boss spawn point

How does the Copy skill actually work?

Once Copy is active, the mechanic is simple but powerful. While in Rika Manifestation, kill any boss on the map. After the kill, that boss becomes highlighted. Press T to absorb their signature move. That ability is now yours to use for the duration of Rika's manifestation, or until you overwrite that slot with a different skill.

You get four copy slots total. Each slot holds one boss ability. Overwrite any slot by copying a new skill into it. Some of the strongest abilities you can steal include:

Dismantle from Sukuna
Maximum Meteor from Jogo
Gravel Jump from Judgeman

Being able to run four boss abilities at the same time is what makes Copy one of the strongest techniques for boss content. You are turning your enemies' best moves against them.

Is Copy worth the grind?

Yes, especially if you spend most of your time fighting bosses. The ability to stack four stolen abilities at once, including top-tier moves like Maximum Meteor, makes Copy one of the most flexible and high-damage options in the game. The Memory Shard quests are straightforward. The crate farming for Domain and Heavenly Fragments happens passively. The Binding Jewel is the only real bottleneck, and even that becomes routine once you settle into a farming loop.

For more Roblox and Jujutsu Zero content, browse more guides covering the latest updates and mechanics across top Roblox titles.