Once you have finished downloading NO$GBA, extract the downloaded. We’d suggest NO$GBA – it’s open source, fast and one of the most frequently updated. Step 1: you can start by downloading a reliable and bug free emulator. The second component is the Pokemon Black 2 game itself to play on the emulator. The first component is the emulation program which can imitate the ds OS and software. There are two components for playing a ds Pokemon Black 2 game on your PC.