It shows you on screen the strings of an electric guitar which can be played with your keyboard.
FretsOnFire is like the popular Guitar Hero for PlayStation. If you know that game, it will not take you a long time to get used to FretsOnFire.
Each string is played by one key and they are classified by colors: F1 green, F2 red, F3 yellow, F4 blue and F5 Pink. Press enter if you want them to vibrate.
The aim of the game is to represent correctly the notes appearing on the screen.
Frets on Fire also includes a songs editor, so you can create your own ones.