3ds format into your internal storage or SD card and select them from the main app menu. The Citra app is not affiliated, associated, authorized, endorsed by, or in any way officially connected with any company that manufactures portable gaming consoles. You are legally required to dump your games to use with Citra. The Citra app does not include any games, or copyrighted system files. Citra is a new emulator for Android OS, enabling you to play your favorite Nintendo 3DS games on your smartphone (also on iOS, Windows and MacOS).