Certainly! Here's a simple implementation of a Five Nights at Freddy's (FNAF) game as a single HTML file using JavaScript. Please note that this is a minimalistic version and only includes a basic gameplay mechanic:
Note: In this implementation, you need to replace the `emozi_cat.png` with the actual image path for the animatronic in your FNAF game.
This is a basic FNAF game where the player must click on the animatronic to win, but if they click when the animatronic is not active, they lose. The game restarts automatically, and the player can keep playing by clicking the "Restart" button.