1. You need an N64 emulator, recommended: Project64
(When you click the link, the download link will be down at the bottom called Project64 1.6)
2. Once you install, you can download games (ROMs): N64 games
(When you click the link, the first list shows top 25 games, but if you click the letters above it, you will be able to browse through all games)
(Store the games on your desktop or a folder that you can remember where it is located)
3. Run Project64
4. In Project64, click File -> Open Rom -> then search for the games where you saved at and load it
ENJOY!
Game-play controls:
From keyboard:
Go to Options -> Configure Controller Plugins...
Set keys to your liking, remember, the buttons are the same as the N64 controller.
From controller:
Go to Options -> Configure Controller Plugins...
Set keys to your liking, remember, the buttons are the same as the N64 controller.
If you want to use the joystick, select a button on Analog Stick and move the joystick to the according direction.