Unlocking every secret achievement in Holo vs Robo is one of the biggest challenges for completionist players. Unlike regular achievements that appear naturally through story progress, secret achievements require specific actions, hidden mechanics, or unusual win conditions that the game never explains directly. This guide covers all confirmed secret achievements, explains how to unlock each one, and includes tips to avoid common mistakes.
How Secret Achievements Work
Secret achievements do not appear in your achievement list until they are unlocked. Many of them are tied to:
- Hidden stages
- Character-specific mechanics
- End-of-stage board states
- Extremely long-term actions
All achievements listed here are confirmed and complete, based on in-game tracking and Steam achievement data.
Secret Achievement List & How to Unlock Them
Madman – Beat the Madhouse
The Madhouse is a hidden stage on the story map.
How to unlock:
- Hover your cursor above the island area just above Stage 2-4.
- A hidden node will appear called Madhouse.
- Enter and clear the stage.
Tips:
- Ollie provides massive cheer generation here.
- Cheer is effectively unlimited, so use high-cost attackers freely.
- Shion is very strong due to her multi-lane and flying enemy coverage.
- Aki is expendable and mainly helps speed up clears.
Excuse Me – Reap 10 Enemies With One Calli
How to unlock:
- Enter Stage 1-5.
- Bring a Wall unit, Fauna, Moona, and Calli.
- Wait until mid-stage.
- Place Moona in the middle lane.
- Activate Calli at the correct timing to reap at least 10 enemies in one use.
Timing matters more than raw damage for this achievement.
Monday Blues – Destroy 20+ A-chan Robos With One Kanade
How to unlock:
- Must be done on Stage 1-5.
- The stage must spawn A-chan Robos.
- Bring Kanade and support units.
- Trigger Kanade’s skill once enough A-chan Robos are present.
This achievement cannot be unlocked on stages without A-chan Robos.
Doomed Yuri – Defeat Nerissa-Bot Using ERB
How to unlock:
- Earliest Nerissa-bot appearance is Stage 2-4.
- ERB can solo Nerissa-bot if positioned correctly.
Important tip:
- Do not leave empty lanes, as Vivi-bot can instantly cause a loss.
- Play the stage normally with ERB as your main damage dealer.
Evac – Move a Low HP Marine Using Subaru
This achievement relies on Marine’s passive mechanic.
How to unlock:
- Deploy Marine as a wall unit.
- Allow her HP to drop.
- Use Subaru to reposition Marine into the backline while she is low HP.
This triggers Marine’s damage bonus and unlocks the achievement.
Barren Glory – Beat a Level With No Holodolls Remaining
How to unlock:
- Let all your holodolls be removed from the field.
- Finish the stage afterward.
Tip:
- Do not accidentally lose by allowing Robos into empty lanes.
- Monitor Vivi-bot jumps carefully.
On the Brink – Beat a Level With No Yagoo Heads Left
How to unlock:
- Allow Robos to destroy all Yagoo heads.
- Clear the stage afterward without losing.
This is easier in shorter or early-game stages.
Perfect Placement – Win With a Fully Symmetrical Board
Easy method:
- At the end of any stage, scoop up all dolls.
- Place a single Sana.
- Clear the final wave.
This counts as a perfectly symmetrical victory.
Final boss note:
- Leave only the middle row populated.
- Finish the boss using single-use dolls.
- As long as other rows are empty, symmetry still counts.
Cheerleading Squad – Store 5,000 Cheer in One Level
AFK strategy:
- Enter Story Stage 1-1.
- Use only Nodoka and Fauna.
- Let the stage run until cheer accumulates naturally.
Late-game A-chan also makes this achievement much easier.
Luckmaster – Win a Holodoll Race
How to access:
- Click your coin count on the title screen.
- Select the Horse Race Test.
This achievement is luck-based.
Tip:
- Exit and re-enter until races have fewer participants.
- Watch races until the end for unexpected upsets.
Do You Remember – Headpat Gigi 24,921 Times
Yes, this is real.
How it works:
- Headpat Gigi a total of 24,921 times.
- Progress is saved.
- You can stop and continue later.
There is no shortcut for this achievement.
Marathon Master – Beat Marathon Mode
Unlocked after completing Story Mode.
Tips for clearing Marathon:
- You can restart a stage even after losing a doll.
- Avoid Ollie in this mode.
- Start with Nodoka and Fauna for early cheer.
- Use Subaru to reposition Nodoka.
- Finish cheer generation with A-chan.
- A strong setup is 3 A-chan and 2 Nodoka in one column.
Secret achievements in Holo vs Robo reward players who experiment, observe mechanics closely, and push the game beyond normal play patterns. While some achievements test skill, others demand patience, timing, or persistence. With the strategies outlined above, you can unlock every hidden achievement without unnecessary guesswork. If your goal is full completion, preparation and awareness matter more than raw power.