Muccha Octopus
Underwater hide-and-seek
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
A game of hide-and-seek on a coral reef.
■ Octopuses melt into their surroundings
Overlap coral, seaweed, rocks or the seabed and your color slowly shifts to match. Stay still and you become very hard to spot. Move and the camouflage breaks for a moment.
■ But you can't just hide forever
Camouflage burns energy. When it runs out you can't hide at all, so you have to leave your hiding spot and eat fish. That means the chase always happens.
■ Divers search with a spear
Even a direct hit only catches 1 in 4 times, so you have to keep at it. Set a net on their escape route, or watch an ad for a speargun with three times the reach.
■ Sharks don't take sides
Get too close and a shark bites an arm off and slows you down. Sometimes it eats you whole. Divers get bitten too, so nowhere in the sea is truly safe.
■ Play alone or with up to 6 friends
Empty slots are filled by AI, so you can play by yourself any time. Share a room code and play with friends anywhere.
■ The Thrill Score
Points build while you stay camouflaged, perfectly still, right next to a diver. The closer and more head-on you are, the higher the multiplier. Hiding in a safe corner scores nothing.
■ Caught friends can be freed
Being caught is not the end. Stay beside a caught friend for 2.5 seconds and they are back in the game. Divers have to guard what they caught, so every capture turns into a standoff.
■ Looks only, never power
Every form, color and hat changes appearance only. Hiding works exactly the same for everyone. There is nothing to buy that makes you stronger.
■ Monthly subscriptions (auto-renewing)
- Ink Monthly, JPY 280/month: use Ink once every match without watching an ad
- Speargun Monthly, JPY 280/month: use the Speargun once every match without watching an ad
- Octopus Pass Monthly, JPY 560/month: both of the above, plus no ads after matches. You also receive looks (Slender form, Halo hat) on your first purchase, and you keep them even after cancelling
- Items can be used ONCE PER MATCH. Not unlimited. Your strength does not change
- Payment is charged to your App Store account when you confirm the purchase
- Renews automatically at the same price unless cancelled at least 24 hours before the period ends
- Cancel any time in Settings > Apple Account > Subscriptions
- If you already bought the one-time versions, they keep working without a subscription
- Prices shown are the Japanese yen base price; you are charged the equivalent in your local currency.
Terms of Use: https://underflatgames.com/legal/terms.html
Privacy Policy: https://underflatgames.com/legal/privacy.html
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The developer, LIBRA (Apps), indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- LIBRA (Apps)
- Size
- 16.7 MB
- Category
- Action
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- Japanese
- Age Rating
13+
- 13+
- Frequent
Cartoon or Fantasy Violence
Contests
Guns or Other Weapons
Infrequent
Horror/Fear Themes
Contains
Advertising
Messaging and Chat
- In-App Purchases
Yes
- Ink Monthly $1.99
- Speargun Monthly $1.99
- Octopus Pass Monthly $2.99
- Diver: Magma $0.99
- Diver: Rainbow $1.99
- Diver: White $0.99
- Color: Rainbow $1.99
- Color: Aurora $0.99
- Color: White $0.99
- Hat: Star $0.99
- Copyright
- © 2026 LIBRA