Nin v0.6.2 is released. Nin is an advanced Nintendo Entertainement System and Famicom emulator that is actively being developped. Right now, the emulator is not very polished on the UX side, but can run many games without issues. A gamepad is supported. The exact mapping will depend on the vendor's layout. On a keyboard, the arrows are mapped to the NES D-Pad, Space is Select, Enter is Start, Z is A and X is B. Multiple controllers or other kinds of controller are not currently supported.

Supported Mappers
NROM
MMC1
MMC2
MMC3
MMC4
UxROM (Standard, 180)
CNROM
AxROM
GxROM
Color Dreams
MMC3 support is still experimental.

Nin Changelog:
32 bit support on windows
Change the save file location to better match OS conventions

Download: Nin v0.6.2 x86
Download: Nin v0.6.2 x64
Source: Here