The wise rat sensei who trained the Ninja Turtles.
Splinter, often referred to as Master Splinter or Sensei, is a character from the Teenage Mutant Ninja Turtles franchise. A mutant rat, he is described as the grave and stoic sage of the Turtles, their ninjutsu instructor, and their adoptive father.
Calm and quietly supportive, avoiding conflict wherever possible. Self-reliant introverts who plan carefully.In Tomodachi Life, set this Mii's sliders so Speech + Movement totals 0–3 and Thinking + Energy totals 4–7. See the full Strategist guide →
Why this fitsWikipedia calls him "the grave and stoic sage" — he trains, plans, and speaks only when needed. That measured-mentor profile fits Strategist (low Speech + Movement, low Thinking + Energy).
To make a Splinter Mii in Tomodachi Life: Living the Dream, open Mii Maker and pick a lined older face with grey-brown hair, a long wispy mustache and goatee, narrow wise eyes, and a serene mouth, then dress him in his signature red sensei robes. The picker-by-picker walkthrough below works for both Nintendo Switch (LTD) and 3DS (original Tomodachi Life).
Use the system Mii Maker, then bring the Mii into Tomodachi Life: Living the Dream.
Diagrams show where the option sits in the Mii Maker picker (4 columns, scroll to reach later rows). Editor menus differ slightly between regions and console revisions — if an exact option is missing, pick the closest one.
Splinter's full appearance as a Mii Studio data string. Drop it into Mii rendering tools or community Mii editors that accept Studio codes (it's not a console import — for the game itself use the steps above).
04000f0308050216040d03010a060c0c050500000b09000804000a01002f4207010818031304111206030e050712
This is a 3DS-format Mii QR code generated from Splinter's Mii data. On a Nintendo 3DS, open Mii Maker → QR Code / Image Options → Scan QR Code and point the camera at it, then bring the Mii into the original Tomodachi Life. The Switch / Switch 2 has no camera, so it can't scan Mii QR codes — for Tomodachi Life: Living the Dream use the step-by-step instructions above (or the online Mii creator).
Download QR codeRat features (snout, whiskers, big ears, tail)
Mii Maker only builds humanoid faces, so the rat snout, whiskers, ears and tail can't be made — a grey-brown skin tone plus a long grey beard reads as the aged sensei instead.
Build cheat-sheet
Feature → the move to make in Mii Maker
He's an old, wise master — pick a lined, serene older face with narrow, knowing eyes and a calm mouth.
Use a grey-brown skin tone to stand in for his fur (brown is the most common shade; some versions are greyer).
Give him a long grey beard/goatee — the wispy facial hair is the closest the Mii can get to his whiskered sensei look.
Dress him in a red sensei robe using LTD's in-game clothing — the robe is his standard outfit across the cartoons and films.
Donatello
One of the four turtles Splinter raised and trained as his own sons — the brainy, gentle inventor of the team.
Leonardo, Raphael & Michelangelo
The rest of his adopted family — the other three turtles he named after Renaissance artists and trained in ninjutsu.
Recreate the turtles as their own Miis and house them around your Splinter Mii to rebuild the family — but Tomodachi Life: Living the Dream won't recreate their bond automatically. Friendships grow from proximity and shared time, and romance runs on dating preferences, random crushes and birthday/zodiac compatibility, so you steer who gets close.
Splinter has two famous origin stories: in the original 1984 Mirage comics he was the pet rat of ninja master Hamato Yoshi who mutated in the sewers, while in the 1987 cartoon and films Splinter IS Yoshi — a human who mutated into a rat.
He named the four turtles after Renaissance artists he read about in a book on Renaissance art that he found in a storm drain.
Wikipedia calls him "the grave and stoic sage" of the turtles — the calm, all-knowing master who trains them and speaks only when needed.
His arch-enemy is the Shredder (Oroku Saki), the ninja who murdered his master Hamato Yoshi.
A Strategist-type Splinter is the island's calm elder — measured, patient and quietly in control while the younger residents create chaos. Strategists are low-drama and room best with similar personalities, exactly what LTD's roommate harmony rewards, so settle him with another even-tempered Mii. Romance, though, isn't something even a master can plan: who a Mii falls for in Tomodachi Life: Living the Dream runs on dating preferences, random crushes and birthday/zodiac compatibility — never personality — so give your Splinter a birthday and let the island decide.
Use a lined older face, a grey-brown skin tone, narrow wise eyes, a long grey beard and a serene mouth, then dress him in a red sensei robe. Mii Maker can't make the rat snout, whiskers or tail, so the beard and skin tone carry the look — follow the picker-by-picker steps above for Switch (LTD) or 3DS.
Not literally — Mii Maker only builds humanoid faces, so there's no snout, whiskers, ears or tail. A grey-brown skin tone plus a long wispy grey beard and an aged, wise face is the closest stand-in for the sensei rat.
It depends on the continuity. In the original Mirage comics Splinter was Yoshi's pet rat who mutated; in the 1987 cartoon and the films, Splinter is Yoshi himself, a human ninja transformed into a rat.
Strategist fits best — set low Speech + Movement with low-to-mid Thinking + Energy in the panel above. It matches his profile as the grave, stoic sage who plans, trains, and speaks only when needed.
Sources: WikipediaCharacter facts are grounded in the source(s) above; Mii-Maker mapping is our own craft guidance.
Paste a Mii Studio code or upload a Mii QR image into the QR code Mii decoder to get this same step-by-step recreation guide for it.
Build a Mii from scratch in the online Mii creator, then bring its code here for rebuild steps.
