I don't want to complicate things, I just want to get a fair idea which of these emulators are the ones to buy. There is too many on the play store, which I'm practically brand new to. I Know which PSX emulator I want, I got MAME4droid, Mupen64 Plus AE, and Snes9x EX+. I'm now talking strictly paid for apps, and my interests include: Genesis, Neo Geo, NES, N64, and MAME. I need dongle compatability, for multiplayer, this may be something that starts with the system first (not sure). So are the ones I have keepers, which ones are worth the money?