Help & FAQ
Where is my progress saved?
On your device: levels, stars, coins, items, daily missions and achievements. It is removed if you uninstall the game or clear its data.
Can I move my progress to a new phone?
Yes, if you sign in with Google Play Games. Your progress is then stored in your own Google account (cloud save), so sign in with the same account on the new phone. Signing in is optional.
Does the game have ads?
Only rewarded videos that you choose to watch, for example double coins after a win or a free item. There are no interstitial ads and no banners.
How do I change my ad privacy choice?
In regions where the law requires consent (such as the EU and the UK), open Settings → Ad privacy options. You can also reset your advertising ID or turn off ad personalisation in your device's Google settings.
A level is too hard. Any tips?
Open the parts guide to see what every part you have met does, and use helper items from the shop. Stars reward using fewer parts, but any working circuit clears the level.
How do I report a bug or send feedback?
Use the Send feedback button in the game (it opens an email with your game version and device model), or write to [email protected].
How do I delete my data?
The game has no account. Uninstall it or clear its data in Android settings. Cloud save data lives in your Google Play Games account and can be managed there.
Still need help?
Email us with your phone model and the app version, and we'll get back to you.