In this tutorial you will learn how to make a Nintendo 64 Portable , this was not made by me , it is made by borjaus on http://www.inventosunicos.com .
I will just post it here!
Step 1: What We'll Need
-An Original N64
-Some tools to connect the n64 to the LCD screen
-A Case to put all these into ( or the original N64 Case glued together using modeling clay)
-A small speaker ( EDIT: It was an N64 Ram Upgrade about 512 MB , get it from amazon.com)