1. What is an emulator?

Defined by Merriam-Webster as hardware or software that permits programs written for one computer to be run on another usually newer computer.

2. Are emulators illegal?

The use of emulators for pirating software is illegal. Emulators were compiled for programmers as the use of a development tool.

3. What emulator should I download?

Choose the console that you wish to emulate from the main emulator download page.

4. How do I use the emulator I just downloaded?

Check the emulator you downloaded for a help file. If a help file doesn't exist, search on your favorite search engine for "emulator name help".