The songs and the rules

Type: a music mod built on the FNAF cast
Opponents: Freddy, Bonnie, Chica and Foxy
Known tracks: Night Shift, Flashing Lights, Shadows
Controls: arrow keys in time with the notes
Cost: free in the browser

Five Nights at Freddy's is a famous horror game set in a pizzeria. The classic version drops you into the restaurant at night, where the animatronics come to life and go after the guard.

Play the new Five Night Freddy - FNF Mod online for free.

As a change of pace, the creators released a music mod where you face only the four main characters:

Freddy Fazbear;
Bonnie the rabbit;
Chica the chicken;
Foxy.

To win you need attention and concentration.

The battle runs through several songs, the best known being "Night Shift", "Flashing Lights" and "Shadows". They carry enough rhythm that you forget your opponent is Freddy - right up until the song ends, because losing has no second chance.

The mechanic is key presses: hit the arrows to match the notes. The higher your accuracy, the better your odds. Match the rhythm to beat Freddy and his friends and get out of the pizzeria.

Getting through the harder charts

Watch the note lane, not the character - the animations are there to distract you
Held notes cost more health on a miss than single taps
Learn one song properly instead of running all three badly

The pizzeria this is set in, without the soundtrack, is FNAF 1.