Help and support

• Is it on? Check My Ninja → Settings → “Use the camera to read hand seals”.
• Permission. On Android, go to Settings → Apps → Jutsu Clash → Permissions → Camera and allow it. On Windows, open Settings → Privacy & security → Camera and turn on camera access and “Let desktop apps access your camera”. On Linux, your user needs access to the camera (on most systems, membership of thevideo group). On a Mac, open System Settings → Privacy & Security → Camera and allow Jutsu Clash. Close any other app that is using the camera.
• Light. If the Dojo says “Too dark”, turn on a light or face a window. Avoid a bright window behind you.
• Distance. Prop the camera up about an arm's length away, so both hands fit in the picture with room to move. The Dojo tells you if you are too close or too far.
• Where it works. Camera seals work on Android phones, and on Windows, Linux and Apple Silicon Mac computers with a webcam. The Steam Deck has no camera of its own, so you weave with its controls instead.

Teach it your own hands: each lesson needs three steady holds of a seal. If it learned a seal badly, start again withSeal Dojo → Free practice → Forget my samples. That deletes the hand-shape samples of the ninja you are playing (they are numbers kept only on your device), and the Dojo goes back to its starter samples until you teach it again.

No. Hands are read on your device, and no picture is ever saved or sent. See the privacy policy.

The online server has moved on to a newer version of the online rules, and both players' games must speak the same one. Update the game to the latest version (on Steam, restart Steam if the update hasn't arrived). Your friend needs the latest version too.

Check your internet connection and try again in a minute. If the server is down for a while, every offline mode still works: AI duels, the Seal Dojo, the Forge and My Ninja.

A friend code works once, for 10 minutes. Make a new one and type it in while you are together. Case, spaces and dashes don't matter, and O counts as zero. After several wrong tries, wait a few minutes before trying again. Adding friends is switched off for players under 13.

Your friend has 90 seconds to accept. They need to have the game open, or challenge alerts turned on (Android). They may also have set “Who can challenge me” to nobody in Play Online → Settings. After a friend declines, wait a couple of minutes before challenging them again.

On Android, turn on Play Online → Settings → “Alerts when the game is closed”, and allow notifications when your phone asks. Alerts are optional and are not available to players under 13. On other platforms, friends' challenges show up while the game is open.

In the game: My Ninja → Settings → Delete my online account. Or email us. The delete account page explains what is removed.

Not yet. Your ninjas and progress are saved on the device you play on, and the online guest account belongs to that device too.

There is no chat, no public player list and no ads, and players under 13 get extra protections online. The section for children and parents explains them.

Yes. The whole game can be played with a gamepad, including the Steam Deck's built-in controls. In menus, the D-pad or left stick moves the highlight, A picks and B goes back. In a duel:

• D-pad: the four seals on the left pad. Y B X A: the four seals on the right pad. Each seal button shows its gamepad button while you play with one.
• RT: release the jutsu at your rival. LT: cast it on yourself.
• LB and RB: your two specials. View: clear the seals.Start: pause.

On a PC, the keyboard works too: Q W E R and A S D F weave the eight seals, Space releases, Tab casts on yourself, Esc pauses, and F11 or Alt+Enter switches fullscreen.