So you’ve hit Planet Level 6 and realized that leveling up now requires raising a Tamagotchi all the way to adult each time. At the normal pace — Baby to Adult takes several days — reaching Level 10 could take over a week. There’s a faster way. A much faster way.
The Bbmarutchi method lets you get from Level 6 to Level 10 in one to two days instead of a week or more. Here’s exactly how it works.
What Is Bbmarutchi?
Bbmarutchi (pronounced “big baby Marutchi”) is a special character that only appears when you prevent your Babymarutchi from evolving normally into a Kid. It looks identical to Babymarutchi but much larger — basically a giant pastel yellow blob that never grew up.
The key thing about Bbmarutchi: it counts as an adult for planet level purposes, even though it’s technically still a baby-stage character. That means every time you raise a Bbmarutchi and it eventually passes on, your planet levels up — without you having to spend days raising a Kid, then a Young, then waiting for the adult stage.
The downside: Bbmarutchi cannot breed with anyone. It’s a permanent bachelor. To move on to the next generation, you’ll need to select New Egg from the Help menu in Lab Mode.
How to Get Bbmarutchi
The trick is to prevent Babymarutchi from accumulating 4 matching Field Cells. Normally, when a Baby spends 15 minutes in a field, it gains one Field Cell. Get 4 matching cells and it evolves into the corresponding Kid. To get Bbmarutchi instead, you need to switch fields often enough that you never accumulate 4 of the same type.
Step-by-step:
- Hatch your egg and wait for Babymarutchi to appear
- Immediately head to the Field View
- Every 12–14 minutes, switch to a different field
- Keep rotating fields for 4 hours total
- At the end of 4 hours, Babymarutchi will automatically evolve into Bbmarutchi
That’s it. Four hours of field-switching, then you have a Bbmarutchi that counts as a full adult for leveling purposes.
The Single-Switch Method (Easier Alternative)
The classic field-rotation method works, but community player @fuzzynchic on TikTok documented a much easier approach that only requires one field switch:
- Hatch your egg and let Babymarutchi wake up from its initial nap (~35 minutes after hatching)
- Switch fields once
- Put the device down and leave it completely alone
- At the 4-hour mark from hatching, Bbmarutchi appears automatically
That’s it — one switch, then walk away. The key insight is that the baby can never accumulate 4 matching Field Cells if you break the streak exactly once at the right time. This method requires almost no active effort, making it significantly easier than field-rotating every 12–14 minutes.
Why it works: Babymarutchi needs 4 matching Field Cells to evolve into a Kid. Starting in Field A for ~35 min, then switching to Field B means it never accumulates 4 of either type before the 4-hour Bbmarutchi timer triggers.
The Critical Rule: Never Exceed 15 Minutes
The 15-minute mark is the danger zone. If Babymarutchi spends a full 15 minutes in any single field, it gains a Field Cell for that field. Accumulate 4 of the same type and it evolves into that field’s Kid — which is exactly what you’re trying to avoid.
Switch at 12–14 minutes to be safe. Setting a recurring timer on your phone is the most reliable approach. If you occasionally slip past 15 minutes by accident, don’t panic — a stray cell here or there won’t immediately derail you as long as you don’t hit 4 of the same type.
If Babymarutchi does accumulate 4 matching cells, the evolution prompt will appear. If you ignore it three times, it forces an evolution into the Kid. At that point the Bbmarutchi window is closed for this generation.
How Long Does Each Level-Up Take?
With the Bbmarutchi method:
- 4 hours to evolve Babymarutchi into Bbmarutchi
- A short additional wait while Bbmarutchi runs its course
- Select New Egg, repeat
Compare that to the normal path: roughly 1 hour Baby + 24–28 hours Kid + 24 hours Young + however long the Adult stage runs before you select a new egg. The Bbmarutchi method is dramatically faster.
Realistically, you can cycle through multiple Bbmarutchi generations in a single day if you’re dedicated. Getting from Level 6 to Level 10 over a weekend is very achievable.
What Unlocks at Each Planet Level?
Here’s what you’re working toward:
| Planet Level | What Unlocks |
|---|---|
| Level 1 | Starting state |
| Level 2 | Basic shop items |
| Level 3 | More shop inventory |
| Level 4 | Field switching + second field unlocks |
| Level 5 | More features |
| Level 6 | Third field unlocks + Normal difficulty mini-games |
| Level 7–8 | Additional items and features |
| Level 9 | Hard difficulty mini-games |
| Level 10 | Maximum level — credits sequence (“Lab Staff”) |
Once you hit Level 10 your planet is fully developed. From there, leveling up resets to a simpler cycle and you can focus on actually raising the characters you want without worrying about planet progression.
Bbmarutchi Stats: Be Ready for Neediness
Fair warning — Bbmarutchi is the most demanding character in the entire game to keep alive. It has the stats of a baby, not an adult:
- Hunger drains every 5 minutes
- Happiness drains every 10 minutes
- 35% sick chance after care mistakes
During your 4-hour switching window, you’ll need to stay very attentive. This isn’t a “set it and forget it” strategy — you’re actively tending to an extremely needy character while also switching fields every 12–14 minutes. Plan to do this during a stretch of time when you can give it your full attention.
Tips for a Smooth Run
Set a phone timer. A repeating 12-minute alarm is the simplest way to stay on schedule without having to watch the clock constantly. Some players use 13 minutes as their sweet spot — far enough from the 15-minute cutoff to feel safe, frequent enough to prevent cell accumulation.
Do it on a day off. Four hours of active tending is significant. This is a great project for a lazy Saturday morning with coffee rather than a Tuesday worknight.
Have snacks and items ready. Bbmarutchi’s hunger drains every 5 minutes, so you’ll be feeding it constantly. Make sure your shop inventory is stocked before you start so you’re not scrambling to buy food mid-run.
Don’t try to breed during Bbmarutchi runs. Bbmarutchi literally cannot breed — the breeding option will be unavailable. Just accept that this generation is purely for leveling and move on. The good character runs come after Level 10 is unlocked.
You can still play Lab Mode mini-games while Bbmarutchi is asleep. Lab Mode games don’t count as Tama Field activity, so you can earn Gotchi Points during downtime without disrupting the field-switching timer.
Is It Worth It?
Absolutely. Planet Level 10 unlocks everything the game has to offer — Hard difficulty mini-games, full shop inventory, all field access, and the satisfaction of maxing out your planet. Doing it the slow way means spending a week in limbo where you’re raising characters primarily to level up rather than for fun.
The Bbmarutchi method front-loads the grind into one or two focused sessions and then frees you up to raise whatever characters you actually want. Most dedicated players do their level grind in the first few days and never look back.
Quick Reference
| What | How |
|---|---|
| Switch timing | Every 12–14 minutes (never 15+) |
| Total time | 4 hours |
| Result | Bbmarutchi — counts as adult for leveling |
| Bbmarutchi hunger | Drains every 5 minutes |
| Bbmarutchi happiness | Drains every 10 minutes |
| To start next generation | Lab Mode → Help → New Egg |
| Can Bbmarutchi breed? | No |
Bbmarutchi vs. Normal Adults: Stats Comparison
Bbmarutchi is intentionally demanding — it has the care requirements of a baby stage despite counting as an adult. Here’s how it compares:
| Stat | Bbmarutchi | Typical Adult (forgiving) | Typical Adult (demanding) |
|---|---|---|---|
| Hunger drain | Every 5 min ⚠️ | Every 60–90 min | Every 30–40 min |
| Happy drain | Every 10 min ⚠️ | Every 70–90 min | Every 20–30 min |
| Sick rate | 35% | 30–35% | 35% |
| Planet leveling | ✅ Counts as adult | ✅ Counts as adult | ✅ Counts as adult |
| Breeding | ❌ Cannot breed | ✅ Can breed | ✅ Can breed |
| Cycle time | ~4 hours per run | 3–4 days per run | 3–4 days per run |
| Care mistakes matter? | No — can’t evolve further | Yes — affects next gen | Yes — affects next gen |
Bottom line: Bbmarutchi demands constant attention every 5–10 minutes for 4 hours, but each run is only 4 hours vs. 3–4 days for a normal adult. For grinding Planet Levels 6–10, doing 4–5 Bbmarutchi runs in a day beats doing one normal run per day.
Frequently Asked Questions
Can I use Bbmarutchi on any shell?
Yes. Bbmarutchi is obtainable on all shells — Blue Water, Pink Land, Purple Sky, Jade Forest, and the 2026 shells. The field-switching method and single-switch method work identically on all of them.
Does Bbmarutchi count toward the character compendium?
Yes — it fills the Bbmarutchi slot in your character records just like any adult would.
What if I miss the 15-minute window during field rotation?
If Babymarutchi accumulates 4 matching Field Cells, it will evolve into the corresponding Kid and you’ll miss Bbmarutchi for that generation. Start a new egg and try again. The single-switch method is more forgiving since you only need to do one action.
Can I breed Bbmarutchi?
No. Bbmarutchi cannot breed. Use the New Egg option to start the next generation after your Bbmarutchi run is done.
Which planet levels benefit most from Bbmarutchi speed runs?
Levels 6–10 are the prime targets. The early levels go quickly through normal gameplay, but the higher levels require many adult characters and take significantly longer with normal 3–4 day life cycles. Bbmarutchi’s 4-hour cycle compresses weeks of grinding into days.
Done with leveling and ready to raise the character you actually want? Head to the Evolution Chart to plan your next run, or the Care Mistake Guide to understand how to hit your target adult.