This is my N64,000 gaming emulator with this I can play games from Atari all the way up to Nintendo 64 and PS1 I have modeled all the parts my self to fit into an old (and Broken) Nintendo 64 system. I am using, and all the parts fit for, an ODROID-XU4. The Odroid makes it much easier and smooth for 4 players at once compared to a Raspberry pi 3.

I am Using Lakka as my emulation OS and that works great. When building this Hot glue gun was definitely my best friend to be sure my connections where tight and my USB ports were secure.
If anyone else would like to put there own spin on it I would be more then happy to see what you have in mind!
Please do not do this to a working Nintendo 64 system! It broke my heart enough for me to gut this non working system.

What you'll need:
A old Nintendo 64 system (preferably broken) and its hardware (screws)
ODROID XU4 W/ power supply
https://www.amazon.com/ODROID-XU4-Single-Board-Computer-Gigabit/dp/B0163GEA64

Slim 4-Port USB Data Hub like this one:
https://www.amazon.com/dp/B01CHYKV9Q?psc=1

(2) 1/2' 2-56 screws
(1) SPDT MOM-ON Switch
http://www.digikey.com/product-detail/en/cw-industries/G-1132-0003/SW338-ND/161127

(2) 1/4' 4-40 Screws with nuts
(1) 1/2' 4-40 screw
28 AWG wire
Soldering Iron
Hot glue gun

LED 1.8V >5mA rating such as these:
https://www.digikey.com/products/en/optoelectronics/led-indication-discrete/105?k=led&k=&pkeyword=led&pv543=17&pv543=18&FV=114016f%2C11402b2%2C1140050%2C1140343%2C4fc0078%2C4fc0017%2C4fc0018%2C4fc005d%2Cffe00069&mnonly=0&ColumnSort=0&page=1&quantity=0&ptm=0&fid=0&pageSize=25
Unfortunately I could not find a Blue LED with this kind of rating. So I just attached as described bellow. If you use a 1.8V LED you can simply attach your LED to Pin 11 with a 360 ohm Resistor in series to the anode and the cathode of your LED to Ground. This would be the most optimal approach to a indication LED of when your board is powered on.

RJ-45 Jack similar in size to this:
http://www.digikey.com/product-detail/en/te-connectivity-amp-connectors/5555162-1/A31419-ND/769563

power Jack similar size to this (9mm x 15 mm):
https://www.digikey.com/product-detail/en/cui-inc/PJ-002A/CP-002A-ND/96962

I use the retro link USB controllers they work great to play the old games with the feel of playing the real system, but you can also use almost any USB controller (xbox, ps3 etc.)

Lakka OS: http://www.lakka.tv/get/linux/
Lakka works amazing with controller recognition I haven't had to configure any controller that I have plugged into it.
Follow the instructions on the LAKKA website to upload the ROMs. having the RJ-45 Ethernet port outside made it a dream for me to add and remove ROM files.