For libretro based cores, you can check the available libretro documentation that most are directly linked to below or at for more information about various libretro cores.Since much of this is similar to retropie, more information about these emulators can be found at the retropie wiki located at under the Emulation section.Required file extensions and rom versions are based on default emulator core requirements.Click here for information on how to change emulators per system or game. Any systems below with multiple emulator cores available will have a default emulator core bolded and in parentheses().Any systems listed below that have a standalone emulator will most likely not have controls that can be reconfigured.All bios files go into the bios folder located in the roms (EASYROMS) folder unless specifically stated otherwise in the emulators list below.Rom folders are located in either /roms when accessing the device via network or from the EASYROMS folder in Mac, Linux or Windows if accessing the micro SD card in a micro SD card reader directly on a PC.You can hit (Designated retroarch hotkey)+X, then go to settings, controllers to review and change to your liking. Those that start with lr in the front of the emulator names in the list below) have controller configurations setup automatically by Retroarch.

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