2 to 1 Controller Modification

Originally intended to be a mod that let two zappers connect to one controller port, (2-player Duck Hunt!) it failed and became something different. If you ever wanted to make Super Mario Bros. tougher, I suggest looking into this mod! Two players will both have to push the "A" button on different controllers to make Mario jump. Essentially I put the two controller ports into one. Basic, basic, basic soldering knowledge is needed. I didn't have any knowledge when I started this DIY, but I got the mod working first try.

	First, strip your NES down to the mother board. To get the metal covering off, un-attach the power and port 1 and 2 by jiggling them back and forth. Please note that on the above pic a few things are missing that I had to edit in paint. (i.e. The RF switch) Now remove both controller ports and set the mother board off to the side.
	Next cut both of the controller ports in half with a pair of scissors and throw one of the "green parts" out.
	Now strip all three sets of 7 coloured wires about 1 centimeter (I don't know how many inches that is) down from the scissors cut. I used an exacto blade on a popsicle stick that I got from my multimedia class :P to do the stripping.
	Take all three purple wires and "twist" them together. Heat up the soldering iron and touch it to the stripped, twisted metal. Uncoil some tv/audio solder and touch it to the wire that's heating up. When the solder suddenly melts pull the iron away. The solder will cool almost instantly and form a bond between the three.
	Do the rest of the colour combinations by matching them up and soldering again. There is one more step...

Now you must use some sort of "anti shocking device" (real technical eh?) to stop the soldering blobs from touching each other and shorting out when being used. I used "Star Brite Liquid Electrical Tape". Just paint it on the connections and let it dry for 15 mins. You may have to use 2 or 3 coats to cover the solder. Electricians tape will do the same job, but it may slip, so it's not suggested.

Now plug the green part back into the NES mother board in the 1 player slot. Re-assemble the NES, and give 'er a try! Its a very unique two player tag-team videogame interaction phenomenon!

-all pictures for use on NES Player only