Though Tomodachi Life is a rather simple game, there are always some glitches to be had, with any game.
Please note: things like distorted Mii faces and inhuman sounding voices aren't glitches, because they were "intended".
These are the following glitches that have been found so far.
- Main Article: Mii
- When skipping text by pressing the A button, or down on the directional pad, if the player times it right as the Mii is about to say it, the player will hear them say it, but their mouth will not move.
- When a very happy Outgoing Mii (one that is jiggling back and forth) gives a Treasure or Good to the player, their face will look off to the side slightly.
- When leveling up a Mii, sometimes the number will not change but the player can still get the prizes that come with leveling up. (Leveling up stops normally at Level 99)
- When the player taps a Mii's speech bubble, the player's own look-alike Mii will sometimes say "I wonder if I have a look-alike, too... weird thought!" If they are the players look alike, then they obviously have a look alike.
- When in a Mii's daydream after failing to make up during a fight, sometimes a Mii will begin talking, but the opposite Mii will move his/her mouth instead.
- If the player touches or drags a Mii when they are saying one of their mood phrases upon entering their apartment, their face will retain the matching expression until they eat something, rub their face, or the player leaves.
- During the cutscene when a Mii confesses its feelings to another to try to establish a romantic relationship, sometimes when they nod and say "Sure!" to agree, their eyes won't change to the "happy" expression.
- Just recently discovered, if a Mii is given it's super all-time favorite and the cutscene of them blasting into space is interrupted just before the earth is shown, the Mii's feet will still emit flames.
- When the player deletes a Mii who made another Mii cry, the Mii may still be seen crying even though they aren't sad anymore.
- Main Article: Town Hall
- After connecting with an exchange partner when the player selects the "Send & Receive" option, the partner waiting to be selected for exchange can still leave, causing the selector to have no partners to exchange with.
- Main Article: Concert Hall
- If a solo musical song is played and the player presses the "Make it stop!" button just after a Mii does the first spin, one or more Mii dancers will slide into their next position.
- In the Techno song, when the line "I never get sleepy" is finished and the camera moves to "Candy" it is possible to see the Miis in the middle of teleporting.
- Main Article: Mii Apartments
- In some rare occasions, a Mii will ask for an Age-o-matic or a Kid-o-matic, even though they're currently dating another Mii. If the player gives the Mii the Age-o-matic or Kid-o-matic, they will say that they're happy the way they are.
- Main Article: Mii Homes
- A baby mini-game for a one day or two day-old baby is about to start. When one Mii of a couple tells the player that the baby "just won't stop crying" or the player enters themselves, the player can see the outside boundaries of the home below the Miis. This isn't a problem for when a baby mini-game for the top screen is about to start, because the top screen is wider than the bottom screen, and the outside boundaries below the Miis are not seen.
- During the cutscene after a baby grows up and travels the world or moves in, tapping the screen as the father says: "Take this as a memento." will cause the father to give the baby album early.
- When the player is babysitting a Mii's child, there is a glitch where if the player taps on the screen right as one of the parents begins to talk, the game will become stuck upon the babysitting screen, with no way for the player to exit, except for exiting the game itself.
- Sometimes if the player clicks off peekaboo very quickly there will be a blank text box, with no text.
- Main Article: Port
- If a player has a traveler from his/her island running to it with a StreetPass ready to receive, and another one that hasn't arrived yet but will, if the player talks to the one on the port before the message asking if he/she wants to check the StreetPass appears, the player will (for a brief moment), after talking to the Mii, see the next Mii's face there already as if it were ready to be talked to. The message asking to check the StreetPasses will pop up afterwards, and after the boat sequence, the second Mii will arrive.
- Occasionally when the boats arrive, there's a chance the game will lag before or after an explorer is sent away, causing any or all boats left to ignore the remaining explorers.
- Main Article: Mii News
- During a news announcement if the player presses the back button when the screen is transitioning from the news image to the first islander's reaction, the button noise will play, but the news will continue.
- After turning off the game, travelers from the player's previous save file will still be send through StreetPass. The player won't be able to see where they are but will still receive notifications that a traveler has sent a message when they haven't.
- When the parents of a traveler have finished reading their child's letter sent from an island's campground, the sound of the ocean can sometimes still be heard as they finish reading.