Fusion accidents are a mechanic in Shin Megami Tensei V (SMT V) that causes an unexpected demon to be born out of a fusion. In this guide, we show you all about Fusion accidents, when they happen, what exactly happens, and more!

List of Fusion Accident Demons

All Fusion Accident Demons

Demon	Race	Level
Amabie	Enigma	39
Hare of Inaba	UMA	31
Kinmamon	Enigma	68

In Shin Megami Tensei V: Vengeance, three of the 40 new demons can only be obtained through fusion accidents. These exclusive demons are Amabie, Hare of Inaba, and Kinmamon. They cannot be acquired through normal dyad fusion or special fusion, only through fusion accidents!

SMT V New Demons List

What Are Fusion Accidents?

An Unexpected Result During Demon Fusion

A Fusion Accident is a demon fusion feature that can result in completely different demons from the expected outcome.

Results to Demons with Different Race, Level, and Skills

These new demons often have different skills and races compared to their parent demons, which could be a disadvantage if you're aiming for a specific demon.

However, fusion accidents can also result in a demon of a higher level, which is beneficial, especially if you can't access them due to level differences.

List of Demons

How to Trigger Fusion Accidents

Fuse Demons During Full Moons and New Moons

Fusion accidents can mostly happen during Full Moons and New Moons. Be sure to always check the current moon phase on the upper left corner of your screen before fusing demons to avoid unplanned results!

Moon Phase Effects

Use Mutative Element to Boost Odds

The Mutative Element is a new miracle specifically designed to boost the rates of fusion accidents. This significantly increases the chances of triggering fusion accidents, which can be further enhanced by fusing demons during full moons.

SMT V Miracles List and Effect

Fusion Accident Probability

Fusion Accident Probability Comparison

As mentioned above, it's best to fuse demons during full moons to trigger a fusion accident. If you also have Mutative Element, a new miracle you can learn in Shinjuku in Canon of Vengeance, you can boost the rates further to trigger more fusion accidents when fusing demons.

How to Fuse Demons

No Fusion Accident Will Occur on Normal Days

Fusion accidents can only happen during full moons. On any other days, such as half moons, fusion accidents will not occur.

Boosted Odds During Full Moon with Mutative Element

When fusing demons during a full moon with the Mutative Element miracle activated, you can boost the odds to more than 50% to trigger a fusion accident.

This is one of the new miracles you can learn in Shin Megami Tensei V: Vengeance, so make sure to learn it, especially if you want to increase your chances of triggering fusion accidents.

Shin Megami Tensei V: Vengeance Related Guides

Tips and Tricks | Beginner's Guide

Vengeance Guides

How to Use Magatsu Rails	Carry-Over and Save Transfer Bonuses
Virtual Trainer: How to Unlock and Location	How to Start Canon of Vengeance
List of New Demons	Take Her Hand Guide
Demon Haunt	Magatsuhi Demon
Shakan Dungeon	Consecutive Encounters Explained
All Da'at: Shinjuku Features	Innate Skills
Demon Group Skill Explained	Guest Characters
Sky View Guide	List of Cadaver's Hollow Items
All Story Choices and Alignments	Beginner's Guide
How To Unlock Godborn Mode	Post Game Guide: What to Do After the Story
100% Guide	All Demon Navigators (1.0.3 Update)

Game Mechanics

Press Turn System Guide	Battle System Explained
List of Difficulty Modes	How to Fuse Demons
List of Affinities	Effects of Skill Potential
List of Status Ailments	How to Use Magatsuhi Skills
Moon Phases Effects	How to Fast Travel
Interactable Objects	How to Get Essences
All Miman Locations	Demon Statues

Stat and Build Guides

All Stats Explained	Best Nahobino Builds
Strength	Vitality
Magic	Agility
Luck	-

Farming Guides

How to Level Up Fast	How to Farm Macca
How to Farm Glory	How to Farm Mitamas

Tips and Tricks

Best Names for the Nahobino	Best Demons to Use
Best Miracles Tier List	All Abscesses Locations
All Cironnup Locations	All Aogami Essence Locations
List of Special Fusions	All Trophies List
All Missables

FAQ

Apsaras or Leanan Sidhe	What Carries Over in NG+
Principality or Lilim	Should You Eat the Golden Apple?
Black Frost or Dionysus	Where to get the Horn of Plenty
How to Get Dragon Scales	Should You Spare Khonsu?
Futsunushi or Adramelech	-