- "I had a fight with [Mii]. I'm so upset!"
- — Mii, Tomodachi Life (US)
Fights are a type of orange problem in Tomodachi Collection, and Tomodachi Life. Two Miis can be angry at each other and depending on how it goes, it may or may not break a friendship. Hostile/huge fights are exclusive to Tomodachi Life.
Start of the Fight
The system that determines fights is entirely random-based. Nothing the player does beforehand nor the Mii's relationship levels will determine when the two Miis will fight, nor can the player pre-determine if it's a standard or huge fight. Two Miis that have married have a higher chance of fighting against each other than with other Miis (unless they're looking after a baby).
Up to three fights will break out at random, depending on the island population. Fights cannot be prevented nor can the causes of the fight be tracked down under any circumstances. Outside of this, if the player sees two Miis arguing in Mii Apartments, they are more likely to start a fight if both Miis show angry reactions. It is at the point that either shifting to another apartment or entering the arguing Mii's apartment will instantly kick off the fight.
Dealing with the Fight
In an angry Mii's apartment, there will be small puffs of smoke coming out of their head. The player must calm them down, possibly using certain gifts, such as the bath set, the swing, or the music box, though giving them food, clothing or hats that generates at least a "(s)he really likes/liked it!" works just as well.
Once the Mii is calm, that Mii will go to the apartment of their friend to attempt to apologize. If the friend accepts the apology, they will also apologize. If the friend rejects the apology, they will say they won't forgive them, causing the previously calm Mii to become depressed.
After the Fight
In a depressed Mii's apartment the player can click on the Mii's thought bubble twice to see a flashback of the fight, depicting the two Miis throwing random treasures at each other while yelling insults. In Life, there might also be a scene of the two Miis tugging on a random item with angry expressions.
In Life, there is a chance that the Mii who rejected their friend's apology may have a problem afterwards, depending on the relationship level between the two. The Mii may say they are sick of fighting and want to make up. If accepted, this will play a cutscene where the Mii visits their still sad friend. They apologize back, and the other Mii is no longer depressed, turning its head happily and saying, "Sure," followed by him/her jumping up and the two dancing together. Once they apologize back, the fight will become solved and the Miis will return to being friends.
There is a way to determine if the Mii's friend will try to make up after a failed apology. If the friend's name is still on the Mii's relationship chart under "Friend (Fight)" after the Mii fails to apologize, it foreshadows that the friend may return to apologize back. But if the Mii does not wish to apologize back, they stop being friends immediately.
If the fight fails to be resolved, both Miis can be removed from their respective relationship charts, setting their relationships back to acquaintances. If this occurs to two married Miis, this could lead to an immediate breakup request, unless either wants to make up.
A fight can resolve itself, but the two Miis will stop being friends.
Hostile fights (or huge fights) are exclusive to Life. These fights involve two Miis who are so enraged with another, they will appear to have a fiery aura and heavy metal music will play in their respective apartments. Unlike a regular fight, the Mii is so mad that they refuse to apologize, and any attempt to calm them down will always fail.
The only way to stop a hostile fight is if a random friend of both of the Miis is willing to help them make up. If such friend exists, the request usually generates instantaneously with the actual problem. If they do want to help and the player accepts, a cutscene will begin. In this cutscene, the third Mii tries to intervene with the fight between their two friends. If they succeed, the two Miis will make up by smiling and waving at each other, then dance while the friend Mii applauds happily as a happy tune plays. If they fail, the two Miis will continue to fight and instantly end their friendship and the third friend Mii frowns and ducks for cover, while shaking their head in sadness.
Oddly, Miis that have been in a standard fight long enough cannot enter a hostile fight if the fight goes on long enough, and vice versa.
- Oddly, when a third Mii attempts to resolve a hostile fight, the two Miis that would normally be represented with the flaming aura are instead shown with puffs of smoke, as if the Miis had a normal fight. This is possibly to make the Miis more noticeable, as the fiery auras obstruct their sides and back.
- The player can tell if the apology is going to be accepted or rejected by the two Miis' relationship. If one of them has a low enough status ("Getting Along OK" or lower), there's a chance they'll be rejected, even if the other Mii has a high level. In the case of a hostile fight, if either Mii has said low status, there's a chance the fight will fail to be resolved.
- Miis will not fight with their parents or their siblings.
- Usually there's a pause after the Mii apologizes to its friend; at other times, the other Mii will immediately answer.
- It's possible for a fight to occur when a Mii is asleep.
- If the player witnesses a fight from outside an apartment and chooses to enter, the Miis won't stop what they're doing, turn at, and walk to the player when the doorbell rings, and it will take a longer time for the player to enter the apartment.