ArcEmu - Watch Emulator

ArcEmu is a mobile application that allows users to play Game Boy, Game Boy Color, and Game Boy Advance games on their iPhone, iPad, and Apple Watch. It offers precise and fast emulation thanks to its mGBA core, with the option to choose between 30 or 60 frames per second. The app supports all orientations on iPhone and iPad, and has well-designed on-screen controls that can be customized for transparency and position. Users can also choose between an 8-directional or 4-directional D-Pad on their devices.

In addition to these features, ArcEmu also offers fast-forward and slow-motion options, as well as the ability to modify the color palette for Game Boy games. The app also has a button hold/sustain feature, accelerometer and gyroscope support on iPhone and iPad, and even supports the Digital Crown on Apple Watch for gyroscope control. Rumble support is available on iPhone, and the app also supports game controllers on both iPhone and iPad. Users can also import ROMs directly from their iPhone, and the app will automatically transfer them to their Apple Watch.

ArcEmu is compatible with Apple Watch Series 3 or later, Apple Watch SE or later, and Apple Watch Ultra or later. It also offers features such as zip file support, auto-save, and the ability to share save states between devices using iCloud. The app even has Family Setup support for standalone Apple Watch devices.

It's important to note that ArcEmu does not come with any games or ROMs. Users must import their own Game Boy ROMs from their iPhone. The app also includes a disclaimer that it is not affiliated with Nintendo, and that the name "Nintendo" and all associated game console names are registered trademarks of Nintendo Co., Ltd.

The screenshots featured in the app's description showcase games such as Acorn Grove, Anguna, Hauntsfield, and µCity Advance. These games are not included with the app and must be downloaded separately from their respective creators.

In summary, ArcEmu is a versatile and feature-rich mobile application that allows users to play Game Boy, Game Boy Color, and Game Boy Advance games on their Apple devices. It offers precise and fast emulation, customizable controls, and support for various devices and features such as the Digital Crown and game controllers. However, users must provide their own ROMs and the app is not affiliated with Nintendo.