Sort of off topic, but could someone explain to me what makes this cart work, opposed to the method described here:
http://chipmusic.org/forums/topic/5765/ art-guide/
This has been punching my brain for the better half of six months now. We're close, but not quite there.
his wiring guide is partially off, you don't need one of the wires he used on NTRQ
PR8 / Pulsar, the reason it has so many steps is because PR8 runs on a hardware setup only found in a total of 2 games across the entire famicom and NES library, so he goes about hacking the hardware into an existing easier to find board instead of hunting a donor down. You can find a suitable donor (Final Fantasy 1+2 for famicom) reasonably cheap, shipping always kills the deal though, so you're almost guaranteed to be paying atleast 8-10$ for the cart