nevermind, the playstation runs off 7.5v there's no point running 2 extra wires just for that :o
this is a 4021 static shift register. it costs about 25 cents and is the only thing besides a proper plug that you need to make your own nes controller. i had been thinking about making my own nes arcade stick but always when it comes time to pay i decide to run off and do some other less expensive project. there's never a box full of arcade style buttons and joysticks at the thrift stores :< i guess you could potentially wire 2 of these together to make an snes controller but i'm not 100%