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App Store Apps > Games > Arcade Games > Mysterious Creatures
App profile & analytics · Games · Data updated 2026-10-04
Mysterious Creatures icon

Mysterious Creatures

by Masakazu Yonehara · Free · Version 1.7.0
Availability On the App Store since August 2011 ↗
Rating on App Store
3.40/5
5 ratings
Rating
3.40
5 reviews
Best rank
–
not in the top lists
Last updated
June 23, 2026
1.7.0
AppBrain's verdict Established

It doesn't have enough ratings yet to judge what users think.

Mysterious Creatures is made and published by Masakazu Yonehara. AppBrain is an independent app data site and isn't affiliated with Masakazu Yonehara. The app name, icon, screenshots and description belong to Masakazu Yonehara and are shown as published on the App Store.

About Mysterious Creatures

Mysterious Creatures is a games app developed by Masakazu Yonehara.

User Ratings

Mysterious Creatures is rated 3.40 out of 5 stars. The rating is based on 5 ratings.

App Information

Mysterious Creatures is freely available from the App Store. The app size is 13.22 MB. The latest version available is 1.7.0. The last update was on June 23, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since August 2011.

Description by Masakazu Yonehara (from the App Store)
Find the mysterious sea creatures lurking in the shirasu!

What's shirasu, you ask?

Shirasu, also known as whitebait in English, are the small young of fish like sardines and anchovies.
They are very small and are used as a garnish or topping in many Japanese dishes, most commonly found as a simple topping for rice.
Shirasu are caught in large batches and have an opalescent white color and resemble super tiny fish!
They are cooked and salted lightly after being caught. Their close culinary cousin are chirimen, which are baby sardines that have been fully dried.
Shirasu, on the other hand, are only partially dried, and have a softer consistency.
They're a delicious and simple way to spice up a plain bowl of rice and an everyday part of cuisine in Japan.

But... there's more to them than meets the eye! Because the small fish are caught in large batches, occasionally another miniature deepsea creature gets mixed into the shirasu.
They're harmless, but you can sometimes find a mini squid, baby shrimp, or tiny fish in the mix! Of course, some are more rare than others, but this kind of seek-and-find suspense has caught on big with children and adults alike. Think of it as the deep-sea version of breakfast cereal...

This game simulates the experience of sifting through the shirasu to find mysterious little beasts. See if you can collect them all!

How to Play
- Using your fingers, sift through the shirasu and look for mysterious creatures. Tap one to add it to your collection.
- Pressing the pause button at top right will allow you to look through your collection.
- Pressing the Twitter button will allow you to tweet the number of samples you've caught of the selected specimen.
- Pressing the magnifying glass at top left will display a hint. Hints are replenished after 10 minutes.
- The game is saved each time the pause button is pressed.

※The creatures in the game have been stylized for uniformity, so their color and shape may differ from the real thing.
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Screenshots

Mysterious Creatures Screenshot 1 of 5
Mysterious Creatures Screenshot 2 of 5
Mysterious Creatures Screenshot 3 of 5
Mysterious Creatures Screenshot 4 of 5
Mysterious Creatures Screenshot 5 of 5
Screenshots by Masakazu Yonehara, from the the App Store listing
Official page on the App Store

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Changelog of Mysterious Creatures

No changelog data

Developer information for Masakazu Yonehara

Masakazu Yonehara

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