iPad Air emulators

Hello ladies and gentlemen,

I've been trying to do some searching to find out the best emulators for the iPad air; however, I'm finding a lot of out dated articles, as well as a lot of articles going on about the non-jailbreak hack.

I've got a iPad Air (1), 32gb. It's jailbroken on that latest version 8.1.2.

I'm mainly looking for these types of emulators

NES
SNES
Sega Genesis
GB/GBA/Game Gear
N64
PSX

One thing I'd love to do is have the ability to play with a PS4 controller (or Wii if necessary).

If somebody could perhaps give me a run down on where to find that most up-to-date and best functioning emulators of those systems, I'd greatly appreciate it.

Thanks in advance!