Key Takeaways
- Sailor Piece is a Roblox experience where players fight and upgrade their gear inspired by One Piece.
- The Moon Slayer fighting style, inspired by Demon Slayer, features powerful melee moves and requires defeating the Moon Slayer boss to unlock.
- To unlock Moon Slayer, gather materials by defeating the boss multiple times and purchase the style from the NPC on Boss Island.
- Summon the Moon Slayer boss using specific materials like Gems and Upper Seals to challenge it and collect drops for the fighting style.
- Craft the F Move after unlocking Moon Slayer by collecting additional items, including Moon Crest and Crescent Shards, from the Mastery NPC.
Sailor Piece is a popular Roblox experience inspired by the pirate world of One Piece. You need to explore islands, fight enemies and bosses, while gradually becoming more powerful by upgrading your gear.
Moon Slayer is one of the newest fighting styles added in Sailor Piece during the Moon update. This fighting style is inspired by Demon Slayer and includes powerful melee moves and combos. So, here’s a complete Moon Slayer guide in Sailor Piece.
How To Unlock The Moon Slayer Fighting Style In Sailor Piece

You can unlock the Moon Slayer fighting style by summoning the Moon Slayer boss, defeating it multiple times, and collecting required materials. After collecting the materials, you need to purchase the fighting style from the Moon Slayer Seller NPC on Boss Island.
The boss drops several materials that are required to unlock the fighting style. You will need to defeat the boss multiple times to collect all required drops and items. Here are all the Moon Slayer unlock requirements:
| Requirement | Drop Chance | Quantity |
|---|---|---|
| Upper Seals | N/A | 25 |
| Moon Crest | 0.88% | 1 |
| “Six Eyed Demon” Title | N/A | 1 |
| Lunar Essence | 9.15% | 9 |
| Demon Remnant | 26.48% | 16 |
| Gems | N/A | 37,500 |
| Crescent Shard | 2.09% | 4 |
After you collect all these materials, you can purchase the Moon Slayer fighting style from the NPC.
How To Summon the Moon Slayer Boss in Sailor Piece
Before you can fight the boss, you need to summon it using special materials. You should go to the Summoning NPC and submit the required items to spawn the Moon Slayer boss.
The boss is difficult to defeat, so you should use strong swords, fighting styles, and high-level stats. You will need to defeat this boss many times to collect all required drops. Here are all the Moon Slayer Boss summon materials:
| Material | Quantity |
|---|---|
| Gems | 700 |
| Money | 700,000 |
| Upper Seal | 1 |
After summoning the boss, defeat it and collect the drops needed for the fighting style and F move crafting.
How To Craft The F Move
After you unlock the Moon Slayer fighting style, you can craft the special F Move by talking to the Mastery NPC. This move requires additional materials and items, so you need to farm the boss more.
You also need the Moon Slayer weapon and Upper clan to craft the F move. Make sure you collect all materials before visiting the Mastery NPC. Here are all the Moon Slayer F Move craft requirements:
| Item | Quantity |
|---|---|
| Moon Crest | 2 |
| Moon Slayer (Weapon) | 1 |
| Upper Seal | 85 |
| Upper (Clan) | 1 |
| Crescent Shard | 10 |
After you submit all these materials to the Mastery NPC, you will be able to unlock the Moon Slayer F move.
Frequently Asked Questions (FAQs)
Moon Slayer is a fighting style added during the Moon update with powerful melee attacks and combo moves.
You can find the boss by summoning it through the Summoning NPC using required materials.
Yes, it is a strong fighting style with powerful moves and good combo potential for combat.
Yes, you need to defeat the boss multiple times to collect all required materials and drops.
You need Moon Crest, Upper Seal, Moon Slayer weapon, Upper clan, and Crescent Shards to craft the F move.
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