The long-awaited Halloween Event has finally landed in Peroxide, and it’s packed with new mechanics, collectibles, and even a terrifying new raid boss. If you played the 2023 Halloween event, this one will feel familiar — but with new twists, new rewards, and a major addition: Ingus, a brand-new race system tied to this year’s metamorphosis.
Active Peroxide Halloween 2025 Update Codes
Let’s start with the working codes from the update:
- PeroxideHalloween2025 – Rewards 100 Product Essence
- TrickOrTreat – Rewards 50 Product Essence
That’s a total of 150 Product Essence just for redeeming both codes.
Event Overview: Cauldron & Candy Farming
This year’s Halloween event revolves around your Summonable Cauldron — a special item found in your inventory when you log in after the update.
The cauldron lets you sacrifice fallen players or enemies to collect Halloween Candy, the event currency used for trades and crafting.
How It Works
- Summon the Cauldron from your inventory.
- Defeat enemies or players that are within 20 levels of your character.
- Use their body on the cauldron to gain 10 Halloween Candy per sacrifice.
- Collect candy and head to the Harvester to exchange it for event rewards.
Hollows in Hueco Mundo now wear pumpkin heads and can also drop Halloween Candy directly — making it possible to farm without PvP if you prefer.
Finding the Harvester (Candy Trader NPC)
The Harvester NPC is located in the Meadows Forest, accessible from Hueco Mundo.
How to Reach the Harvester:
- Travel to Hueco Mundo.
- Look for the purple triangle beacon (the Time Gate indicator).
- Move opposite the triangle until you reach a deep crevasse.
- Jump down and continue through the caves until you reach the Meadows Forest.
- Locate the Time Gate area, where the Harvester stands near the same spot as in past events.
Trading with the Harvester
When you talk to the Harvester and select “I have Halloween candy to turn in”, you’ll get several options to spend your candy:
Exchange Options
- 150 Candy → 1 Product Essence
- 1 Essence of Halloween
- Metamorphosis Potion
About the Metamorphosis Potion
Unlike the old version that transformed you directly, the Metamorphosis this year grants an Ingus Potion — a tradable item that unlocks the ability to obtain the Ingus race.
Normal Ingus vs Legendary Ingus
- Normal Ingus – Base version gained through the event.
- Legendary Ingus – An advanced form tied to your Riatsu color, scaling your stats with your aura type and color.
Candy Loss on Death
If you die while holding Halloween Candy, you drop some or all of it.
Players can steal candy by defeating others, so bring friends or stay alert while farming.
For PvP efficiency, Strength-based builds work best, though some Spirit builds (like Glacier) also perform well.
Summoning the Distorted Oni (Halloween Raid Boss)
Once you’ve sacrificed 5 players using your cauldron, you’ll receive an item called Thread of Fate.
How to Use Thread of Fate
- Use the Thread of Fate to summon the new raid: Distorted Oni.
- This is a large-scale boss fight, designed for multiple players but can technically be soloed (though it’s very difficult).
Raid Mechanics
- The boss deals massive damage and has multiple phases.
- Phase 2 introduces chaotic, large AoE attacks — dodging and regeneration moves are key.
- Chaos abilities are considered the strongest for survivability here.
- The more players involved, the more Halloween Candy you earn upon completion.
Distorted Oni Boss Drops & Rewards
Defeating the Distorted Oni can reward exclusive Halloween accessories with strong stat bonuses and unique visual effects.
Boss-Exclusive Accessories
| Accessory | Stats & Effects | Details |
|---|---|---|
| Inverse Oni Garb | +25 Spirit, +25 Vitality, +20% REA | Base version; secondary color reflects your chosen secondary color. |
| True Inverse Oni Garb | Scales with Riatsu | Same stats, but color changes based on Riatsu color (e.g., Black Riatsu makes it black). |
| True Oni Horns | Scales with Riatsu | Black horns that glow faintly with your aura color. |
| Oni Horns | Standard version without Riatsu scaling. |
Additional Accessories (Unknown Drop Sources)
These might be rank rewards or event-exclusive items.
| Accessory | Stats | Description |
|---|---|---|
| Nameless Cloak | +25 Riatsu, +25 Agility, +15 Spirit, +40% REA | Elegant cloak with sleek dark visuals. |
| Demon’s Form | +15 Spirit, +15 Strength, +12 Vitality | Purple demon wings; great for hybrid builds. |
| Hunter’s Cap | +10 Strength, +10 Vitality, +25 Agility | Speed-focused headgear, Hermes-style look. |
| Shrouded Hood | +15 Vitality, +30 Agility, “Shrouded” perk | Hood with horns; grants a mysterious passive. |
| Candy Horns | +20 Strength | Decorative candy corn horns. |
| Candy Witch Hat | +30 Riatsu, +25% Riatsu Regen, +PvE Damage | Iconic candy witch look with strong scaling. |
| Coven Leader Witch Hat | +25 Spirit, +20% Riatsu Regen | Elegant large hat variant with leader’s aura. |
Other weapon-related cosmetics like Oni Kanabo and Black Cesera are believed to be weapon skins.
Efficient Candy Farming Tips
- Farm in Time Gates: You can summon your cauldron inside Time Gates for safer farming.
- Team Up: PvP farmers can easily steal your candy — stay with allies.
- Target Pumpkin Hollows: Fast, repeatable candy drops.
- Use Strength Builds: They’re fastest for kills and survivability.
The Halloween 2025 event brings one of the best seasonal updates Peroxide has had yet — merging old mechanics with new systems like Ingus, legendary evolutions, and a raid boss that scales with player count.
Between the cauldron sacrifices, candy trading, and new Riatsu-scaling gear, this event is a mix of chaos and reward — perfectly fitting for Halloween.
Make sure to redeem the codes early, trade your candy before dying, and dive into the Distorted Oni raid for a shot at the rarest event gear.