This Mii is canon. That means this Mii actually exists in the Wii Sports/Wii Sports Resort/Wii Sports Club/Wii Fit/Wii Party/Wii Music games. However some of the information is fanon.
For a Wii Sports Wiki official page of Mizuho, here is this page.
As for her child self, she is a Beginner PRO in Tennis, at ☆1, but is decent in Baseball, at Level 5. However, she is terrible in Boxing, as she is just Level 1 there. Overall, unlike her current self, her child self's skill Level has been downgraded.
Wii Party U
In Wii Party U, Mizuho (both current and Child self) is in Expert Difficulty.
- In Lap Happy, she is in 4th place with a time of 0:36.40.
SSBU Data (MatthewGo707)
- Voice: Type 4, normal
- Role: Brawler and Swordfighter
- Outfit: SSB T-Shirt and Ashley Outfit
- Her Japanese name (みずほ) ("瑞穂" in Kanji) is the same as her English name.
- She often appears in My Nintendo promotions.
- Her name means "fresh rice ears" in Japanese.
- She is an only canon Expert Mii in Wii Party U with that hairstyle.
- According to internal data, her Mario Kart 8 Profile (as a staff ghost and a normal user), and her appearance in a promotional video for Streetpass, she's Japanese.
- Mizuho was featured in a Japanese promotional video for Streetpass Mii Plaza. In it, she states she is from Niigata, Japan, and has recently been proposed to.
- Despite using a mouth type that doesn't have lipstick, Mizuho's Mii is set to have pink lips instead of the default orange. This might be a remnant of an earlier design for her.
- She is seen in many trailers for the Mii Costumes in Super Smash Bros. for Wii U.
- On the Tomodachi Life official website, a Mii on the website appears similar to Mizuho. That Mii in question appears in the personality quiz section on the website.
- In the Mario Kart 8 Deluxe Overview Trailer, Mizuho appears racing as an Inkling Girl. Her name there was also written in hiragana.
- In her Wii Party U artwork, she seems to be playing the role of the head chef in Recipe Recall.
- In the data files of Miitopia, she is listed as Young. (Child for child self)
- She and Barry have the exact same skill levels in sports.
- Mizuho appears on Wii Fit U "Gym Community" preview page on Wii Fit U main menu.
- MatthewGo707'a rendition of Mizuho is changed only by skin, as her skin is changed to light pink shade of skin (situated right below the default skin selection in Nintendo Switch).
- Her height value is set to 55 (15 for child self) and her weight value is set to 52.