.USA

.USA file extension

This is the basic program to work with .USA extension

Project64

Project64 Project 64

Project64 is a completely free and open-source emulator for the Nintendo 64 and 64DD written in C++. Capable of playing your favorite N64 games on your PC with high definition graphics, excellent compatibility, save states, built-in cheat codes, and more... (more)

The program works with the following extensions: rom, jap, pal, n64, usa, v64 and z64