Just Got an 8bitdo Ultimate Bluetooth Controller, What Now?

The immediate goal is to use it on my potato pc and play Batman Arkham Asylum.

Using the 2.4ghz adapter immediately detected the controller and the game recognized it as well so I could play on the get go.

However, I wanted to try the bluetooth mode which I had trouble with.

And I wanted to try using the back buttons (like mapping it to A so I can use it for sprinting while moving the camera).

1. Do I need to download a software? update firmware?

2. What games would you recommend to take advantage of my new controller (note: I have a potato pc, so probably indie games? or retro games on emulators). I wanted to try Armored Core 3 on PS2 but my PC either couldn’t handle it or PCSX2 isn’t too compatible for that game.