Get help with Hakone: Secret Box Puzzles, the 3D Japanese trick box puzzle collection.
Hakone: Secret Box Puzzles is an iOS and Android app: a collection of 35 3D Japanese trick boxes with sliding panels, rolling brass bolts and hidden catches, with five lessons, a Daily Box, Auto Play and a shelf of keepsakes. This version is free to play with ads, has no accounts, and works offline. Questions? Write to support@equalinformation.com.
The game is free to play, with ads served by Google AdMob. A one-time in-app purchase (not a subscription), Remove ads, removes the ads for good.
Tap Hint to light the next part to move, or Think to hear in plain words what to do and why. Tilt the box with the Left, Back, Level and Forward buttons so brass bolts roll downhill. Auto Play opens the box for you while you watch.
Yes. The game itself plays fully offline; only ads and purchase checks need a connection.
The app has no accounts and no servers of ours, and your progress stays on your device. It shows ads served by Google AdMob, which may use your advertising ID. Where the law requires it the app shows Google’s consent form, and on iPhone and iPad it asks permission through Apple’s App Tracking Transparency prompt. You can reset your advertising ID or limit ad personalisation in your device settings. See our Privacy Policy for details.
Open Settings and tap Restore purchase. You need to be signed in to the same Apple ID (iPhone and iPad) or Google account (Android) that bought Remove ads.
Yes. Every reading page has text-size buttons up to 300%, and Settings offers three room lights.
Game progress is stored on your device, so it does not carry over to a new device or after an uninstall.
Email support@equalinformation.com and tell us your device, the app version and what happened.