Privacy Policy
MATATABI, K.K. ("we") sets out below how we handle information in the mobile game Emaki Gallop (疾風絵巻) (the "Game") and on this website.
Last updated: 26 October 2026
This is a reference translation. The Japanese version is the authoritative text; if the two differ, the Japanese version prevails.
1Information we collect
You can play the Game without registering an email address or a name. We collect the following.
| Information | When we collect it |
|---|---|
| User ID | When you first launch the Game. An anonymous identifier issued automatically by Firebase Authentication; it does not identify you personally |
| Game progress | While you play. Stage clears, stars, your collection and settings, saved on our server |
| Leaderboard information | When a World Race (Hell Screen) result is sent. The name you choose, the rider you used, your score, and your run record (the input trail used to replay ghosts) |
| Usage information | While you play. Run starts and ends, scores, app version, device model, OS and language, collected with an analytics tool (Firebase Analytics) |
| Advertising information | Only if we show ads. An advertising identifier (IDFA on iOS, advertising ID on Android). On iOS we ask for your permission first |
| Purchase information | Only if we offer paid features. Apple and Google process purchases; we do not collect your card number or other payment details |
| Your inquiries | When you contact us |
We do not collect: email addresses, names, phone numbers, postal addresses, precise location, contacts, photos, or microphone and camera data.
2How we use information
- To provide the Game and save your progress, so you can continue after restarting or reinstalling
- To show the weekly leaderboards and ghosts
- To prevent invalid records and run the service reliably
- To analyse usage and improve the Game
- To serve ads and measure their effect (only if we show ads)
- To respond to your inquiries
- To comply with the law
3Information shown on leaderboards
The World Race (Hell Screen) leaderboards show the name you chose, the rider you used and your score to other players. Your run may be replayed as a ghost for other players.
Please do not put your real name or any information that identifies you in your leaderboard name. We may change or remove names that are inappropriate.
4Sharing and service providers
We do not share the information we collect with third parties, except:
- with your consent
- when the law requires disclosure
- with the service providers below, who handle it within the stated purpose
| Provider | Purpose |
|---|---|
| Google LLC (Firebase) | Anonymous authentication, storing game data and leaderboards, usage analytics |
| Google LLC (AdMob) | Serving ads and measuring their effect (only if we show ads) |
| Apple Inc. / Google LLC | App distribution and purchase processing (only if we offer paid features) |
These providers may process information on servers outside Japan, including in the United States. We use them only after confirming that they manage information appropriately under their own terms and policies.
5Your choices about ads and analytics
- On iOS, you can change the permission for ad tracking at any time in Settings
- On Android, you can reset your advertising ID or turn off ad personalisation in your device settings
- Where required, such as in the EU and the UK, we show a consent request about advertising
6Retention and deletion
We keep information on our server while we provide the Game. Leaderboard records are kept week by week.
An anonymous user ID is created per device. If you delete the app, you are treated as a new player the next time you launch it, and the data under the previous ID cannot be carried over.
To have your information deleted, contact us at the address below with the "User ID" shown on the Game’s settings screen. After confirming it is you, we will delete it promptly.
7Children
The Game is not directed to children under 13. We do not knowingly collect information from them.
8This website
This website uses no analytics or advertising tools and sets no cookies. To remember your chosen language, it stores that choice only in your browser; it is not sent to our server.
9Contact
For questions about this policy and how we handle personal information, please contact:
- Operator: MATATABI, K.K.
- Contact: org-support@mtatab.com
10Changes to this policy
We may change this policy when necessary. We will announce important changes on this page and in the Game. If you keep using the Game after a change, you are deemed to have agreed to it.