Quantity   Component name
1 × Raspberry Pi Zero
1 × Nintendo Entertainment System Controller Old school. Clean out all the old grease and potato chip crumbs. Test it out before using it if you can.
1 × Adafruit PowerBoost 500C https://www.adafruit.com/products/1944
1 × Adafruit LiPo 500 mAh Battery https://www.adafruit.com/product/1578
1 × iPhone 5 or 5S Replacement Battery 616-0613 - Get it off eBay for $5 to $6. You can use this as an upgrade to the Adafruit LiPo if you have a heat gun and 2 wire JST connector.
1 × 2 Wire JST Connector https://www.adafruit.com/products/261 - Used with the iPhone 5 battery.
1 × Micro SD Card If you are just emulating NES, you can get by with a small card. I used 32 GB because it's what I had on hand. http://www.amazon.com/gp/product/B010Q57T02/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B010Q57T02&linkCode=as2&tag=cirnutandbol-20&linkId=HPKF6OGOA3PATAXB
1 × Mini-HDMI to HDMI Cable http://www.amazon.com/gp/product/B00NH122PU/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B00NH122PU&linkCode=as2&tag=cirnutandbol-20&linkId=PVFCU6ZMIJZUTINH
1 × Micro USB to USB Cable Only needed for initial configuration. http://www.amazon.com/gp/product/B00LN3LQKQ/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B00LN3LQKQ&linkCode=as2&tag=cirnutandbol-20&linkId=QV6ZLHTA42CGI7YA
1 × USB Wi-Fi or Ethernet Adapter Only needed for initial configuration. As an alternative, you could do all software updates and ROM loading via inserting the SD card into another Pi. http://www.amazon.com/gp/product/B00QVXFC1M/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B00QVXFC1M&linkCode=as2&tag=cirnutandbol-20&linkId=4SCDJG7E36QSFTX3
1 × NKK Switches CWT12AAS1 - DigiKey 360-1727-ND SPDT Rocker Switch - https://www.digikey.com/product-detail/en/CWT12AAS1/360-1727-ND/671497
1 × Wire Flexible spare wire to connect everything up. Wire ribbon really helps to cut down on project clutter. However, use single strands if you don't have it.
1 × Really tiny screws I used screws salvaged from a computer tear down. I think they were either motherboard or hard drive screws.
1 × Keyboard Only needed for initial configuration.
1 × USB Hub Only needed for initial configuration.