NES.emu
Advanced open-source NES emulator (known as Famicom in Japan) based on FCEUX with a minimalist UI and a focus on low audio/video latency, supporting a wide variety of devices from the original Xperia Play to modern devices like the Nvidia Shield and Pixel phones.
* Supports .nes and .unf file formats, optionally compressed with ZIP, RAR, or 7Z
* Famicom Disk System emulation using .fds files (select BIOS in the options)
* VS UniSystem support, push Start to insert coins
* Uses FCEU-compatible cheat files (.cht extension) with editing features
* Zapper/Gun support, touch screen to fire, touch & hold outside of display area to simulate firing away from the TV
* Configurable on-screen controls
* Bluetooth/USB gamepad & keyboard support compatible with any HID device recognized by the OS like Xbox and PS4 controllers