AUT Halloween 2025 Update Log – Serpent’s Laceration, Codes

The Halloween season has arrived in A Universal Time with Update 5.4, and this year’s event is more than just a repeat of last year. The Halloween content returns with new progression systems, a revamped emote system, a major console overhaul, new sub-powers, Shinigami mastery ranks, and a refreshed raid with exclusive drops.

This guide breaks down everything you need to know to start the event, unlock Shinigami’s new upgrades, farm candy efficiently, and take on Hollow for rewards.

AUT Halloween 2025 Update Log – Serpent’s Laceration, Codes

The annual Halloween Event has returned with familiar mechanics but more rewards and depth. The core loop remains the same: collect Candy through event activities and exchange it for uE and seasonal unlocks.

Key Event Features

  • Candy returns as the main event currency
  • Exchange Candy for uE via the Sigma of Halloween
  • Halloween cosmetics and kill effects are back for a limited time
  • Shinigami questline has returned
  • Event enemies and the Cathedral map are available again

Candy Drop Rates

Candy Type Source Drop Rate
White Candy Halloween NPCs 100% (unless Green drops)
Green Candy Halloween NPCs 25%
Purple Candy Hollow Raid 10%

2. How to Start the Halloween Event

Three new event NPCs can be found at West Park. Each serves a different purpose, so it helps to speak to them in this order:

Bawx

Location: West Park
Use this NPC to teleport to the Cathedral, the central hub for Halloween content, enemies, and Hollow’s raid arena.

The Sigma of Halloween

Location: West Park
This is the event exchange vendor. Speak to him to convert Candy into uE. uE is used to roll for returning Halloween skins and kill effects.

Distinguished Wolf

Location: West Park
Interact with this NPC to begin the Shinigami Questline. This quest has returned for a limited time and now includes mastery progression for Shinigami.

3. Shinigami Returns with a New Mastery System

Shinigami is back, but this time it comes with a new Mastery Rank system that improves abilities as you level it up.

Shinigami Mastery Breakdown

  • Max Mastery Rank: 10
  • Use a Pumpkin on Shinigami to increase Mastery by 1 rank
  • Each rank increases your Soul Cap by 15

Mastery Rank Rewards

Rank Upgrade
1 Remedy now heals nearby allies and grants a shield to the user
3 Phantom Legion summons 4 minions
5 Banishment gains a finishing variant
8 Phantom Legion summons 5 minions
10 Death’s Grasp immobilizes enemies

4. New Sub-Power: Serpent’s Laceration

A brand-new sub-power inspired by BlazBlue has been added to the game.

How to Obtain:
Dropped by the Denizen of Hell with a 75% chance.

Stages and Benefits

  • Stage 1: Base form
  • Stage 2: 25% damage boost during move, meter cost reduced
  • Stage 3: Gains hyperarmor and the Stage 2 benefits stack per stage

This is an aggressive sub-power designed for burst damage and offensive pressure builds.

5. Hollow Raid Boss Returns

The yearly Hollow raid is back with a refreshed drop pool. Hollow is powerful and designed for group fights, so avoid solo attempts unless highly geared.

Spawn Details

  • Location: Cathedral
  • Respawn Time: Every 1 hour

Hollow Drop Rates

Item Drop Rate
Purple Candy 10%
Green Candy 90%
Cursed Apple 50%
Pumpkin 10%
“Grimharrow” Title Deal at least 10% damage

Cursed Apples and Pumpkins are required for Shinigami progression, making Hollow essential for long-term event goals.

6. New Area: The Cathedral

The Cathedral returns as the main event zone, accessible via Bawx. Inside, you’ll find:

  • Event enemies
  • Hollow raid arena
  • Farming spots for Candy
  • Shinigami progression requirements

Expect strong mobs, so newer players should progress gradually or team up.

7. System Reworks and Quality-of-Life Changes

Emote Rework

Emotes have transitioned into inventory items and now feature:

  • Binding customization
  • Dedicated UI (open using comma key)
  • Keybind support for number keys

Console Improvements

Console gameplay received significant upgrades:

  • Move binding now supports 9 directional combinations using the D-Pad
  • UI rework for clearer move input visibility
  • Improved interaction and button clarity for console menus

This update makes console gameplay far more responsive and customizable.

8. Premium Shop and Other Additions

New skins have been added to the Premium Shop

C-Moon Scentless Apprentice received a full SFX overhaul, including new voicelines, quotes, and pose songs

Hit feedback updates now show boss drop pools and inventory outcomes

Cultivation value tracking has been improved and now persists through combat

Mobile UI now includes a button resizing slider

9. Bug Fixes and Balance Adjustments

Notable Fixes

Input issues caused by Roblox updates have been resolved

Buttons that previously did not work on console have been fixed

King Crimson END quote 7 now plays fully

Virtual cursor issues fixed for console

Balance Changes

Dawn

Flame Strikes final hit now slams the ground