Tamagotchi Uni Care Mistakes — How They Work & How Many You Can Afford

Care mistakes are the single thing that decides which adult you get on the Uni. Here is exactly how they are counted and what each count gets you.

The Rule That Catches Everyone

Care mistakes are cumulative across the Child and Teen stages. Four mistakes as a Child plus none as a Teen is still four mistakes when your Teen evolves. You cannot clean up a rough start at the last moment — an unhealthy Teen cannot become a healthy Adult.

Sickness Rate by Stage

StageSickness chance after a care mistake
BabyAlways sick once, 10 minutes after hatching
Child40%
Teen35%
Adult30%

The Child stage is the riskiest — a mistake there is more likely to make your Tamagotchi ill than at any later point.

Care Mistake Counts for Every Adult

From Teen0 mistakes1–34+
Kuriritchi (M)MametchiWeeptchiSimagurutchi
Labilatchi (F)NeliatchiMilktchiMomotchi
From Teen0–1 mistakes2–56+
Gunchitchi (M)KuchipatchiShykutchiBigsmile
Teftetchi (F)WoopatchiMemetchiPicochutchi
Curltchi (M)KikitchiUnimarutchiGozarutchi
Tustustchi (F)MimitchiUnimarutchiSebiretchi

The Second-Chance Shortcuts

This is the part most guides miss. You can reach the top-tier adult even after making mistakes, if you hit an activity requirement.

AdultNormal requirementSecond chance
Mametchi / Neliatchi0 mistakes1–3 mistakes + Tama Walk at least 3 times
Kuchipatchi / Woopatchi0–1 mistakes2–5 mistakes + order from Tama Delivery at least 10 times
Kikitchi / Mimitchi0–1 mistakes2–5 mistakes + perfect score in 20 Tama Arcade games

Tama Farm trips do not count towards the Tama Walk requirement. Only actual Tama Walks.

How to Make a Care Mistake (If You Want One)

Some adults require mistakes. To make one deliberately: let the hunger or happiness meter reach zero, wait for the attention beep, and leave it.

The Four Special Adults

Four characters bypass the teen-lineage system entirely and can come from any teen.

CharacterRequirements
Hypertchi (M)Generation must be a multiple of 5 · born from a Tamaverse marriage · 3+ Tama Travel trips
Bubbletchi (F)Generation must be a multiple of 5 · born from a Tamaverse marriage · buy 3+ Tama Fashion outfits
Simasimatchi (M)Born from a marriage between two Uni devices · make 1+ DIY accessory as Child or Teen
Yattatchi (F)Born from a marriage between two Uni devices · make 1+ DIY accessory as Child or Teen

The rainbow egg tell: if you have met the generation and Tamaverse-marriage conditions for Bubbletchi or Hypertchi, you will hatch a rainbow striped egg. That is the game telling you the potential is there.