Tamagotchi Gen 1 Care & Discipline Guide: Care Mistakes, Discipline & Tricks

Which adult you raise on the Tamagotchi Gen 1 re-release comes down to two counters: care mistakes and discipline mistakes. This guide explains exactly what counts as each, how the discipline system works on the reissue (it’s stricter than 1997), how to use the Left or Right game instead of snacks, and the beginner mistakes that quietly cost people Mametchi.

Gen 1 guides: Overview · Growth chart · Care & discipline · Oyajitchi (Bill) · Which re-release to buy

How Care Works

Three buttons run everything: A moves the selection, B confirms, and C cancels. Press A to cycle through the status screens — Age & Weight, Discipline, Hungry hearts, and Happy hearts. Empty hearts mean it needs something.

  • Meals vs. snacks: a meal (bread) fills a Hungry heart and adds 1 weight. A snack (candy) fills a Happy heart but adds 2 weight and, if overused, makes your pet sick. The trick to good care: raise happiness with the game, not snacks, to keep weight low.
  • The attention call & care mistakes: the icon lights up on its own when it’s hungry, unhappy, or needs the lights off. Respond within about 15 minutes or it counts as a care mistake.
  • Discipline: sometimes it calls for attention but refuses food and play — that’s a tantrum. Scold it (the discipline icon) to raise its discipline. Each correct scold helps; ignoring these calls counts against you.
  • Sickness: a skull means it’s ill — usually from leftover poop or too many snacks. Give medicine (sometimes twice) to cure it.
  • Sleep & poop: turn the lights off when it sleeps, and clean up poop promptly — both prevent care mistakes and illness.

The Mini-Game: Left or Right

Gen 1’s game is a simple guessing game. Your Tamagotchi turns its head left or right; you guess which way by pressing A for left or B for right. Guess correctly in at least 3 of 5 rounds and you win the game: that fills one Happy heart and trims 1 weight. Because it raises happiness without adding weight the way snacks do, the game is your single most important tool for raising a top-tier adult like Mametchi.

The Discipline System — Explained

Discipline is a percentage meter (0/25/50/75/100%). It fills when you correctly respond to a misbehavior call — and only then.

How misbehavior calls work: Sometimes the attention icon lights up but the Hunger and Happy meters are both full. That’s a misbehavior call. Press the Discipline icon to scold the pet and gain discipline. If you feed or play instead, nothing happens — the discipline meter doesn’t move either way from incorrect responses.

What counts as a discipline miss: Ignoring a misbehavior call (not responding with discipline). This is tracked separately from care mistakes and affects the discipline meter independently.

Discipline and evolution: The discipline percentage at the teen-to-adult evolution is one of two factors determining which adult you get (the other being care mistakes). At 100% discipline with 0–2 mistakes, you get Mametchi. At lower discipline with the same care mistakes, you get Maskutchi instead — which is the secret character gateway if you’ve also never pressed discipline at all.

Optimal strategy for Mametchi: Respond to every misbehavior call with discipline immediately. Don’t miss any. Keep care mistakes at 0–2 across the teen stage.

Common Beginner Mistakes

Not turning the lights off when the Tamagotchi sleeps. The attention icon fires at sleep time. Ignoring it for 15 minutes = care mistake. New players often don’t realize lights are their responsibility.

Not noticing sickness. The skull icon does NOT trigger an attention call. A sick Tamagotchi can die while you have no idea it’s sick. Check proactively, especially if the pet has been neglected recently or has lots of poop on screen.

Not cleaning up poop. Poop also does NOT trigger an attention call — must be noticed manually. Four poops on screen simultaneously cause sickness. Check every few hours.

Using snacks too much. Snacks add 2 weight each and risk sickness from overuse. Always prefer winning the mini-game to fill happiness. Snacks are fine occasionally but not as a primary happiness source.

Using discipline at the wrong time. The Discipline icon only does something when the pet is making a false call (attention lit but meters full). Using it at other times has no effect — and no effect on the discipline meter.

Getting 2+ care mistakes as Marutchi. The child stage is the most critical window. Two or more care mistakes as Marutchi forces the bad teen (Kuchitamatchi), permanently locking out Mametchi and Ginjirotchi for that run. Pay extra attention during the first 48 hours after hatching.

Thinking you can pause after an emergency. The pause trick only works proactively — you can’t freeze the Tamagotchi retroactively to prevent care mistakes that already happened.

Essential Tricks & Secrets

The Pause Trick (most important)

You can completely freeze the Tamagotchi — no aging, no hunger loss, no poop, no sleep, no evolution — using the clock-set mode:

  1. Press B on the main screen to enter clock view
  2. Hold A+C simultaneously — “SET” appears with blinking digits
  3. The device is fully paused. Nothing progresses.
  4. Set the clock back to real time to resume.

Use this before school, work, sleeping, or any time you can’t check in. This is the standard community solution for keeping a Tamagotchi alive through a full day.

Sound Toggle

Press A+C simultaneously from the main screen to mute or unmute all sound.

Animation Skip

Press B during any eating or game animation to skip it instantly.

Factory Diagnostic Mode (use carefully)

Hold A+B+C simultaneously, then press the Reset pin. Then: A tests top half of pixels, B tests bottom half, C runs “ROM testing…” — WARNING: letting C complete WIPES the device entirely. Press Reset mid-test to abort safely. Most players never need this.

Battery Warning

Gen 1 uses volatile SRAM only — there is no flash storage. Removing the battery causes instant total data loss. The “30-second battery swap” trick does not work on Gen 1 or Gen 2. It was introduced on Connection-era devices (2004) and later. Always have a replacement battery ready before swapping, and do it as fast as physically possible.

Related Gen 1 Guides