Which animatronic is not fooled by the mask?

In Five Nights at Freddy's 2 (FNAF 2), the animatronics that are not fooled by the mask are Foxy and the Puppet.

Understanding the Mask's Purpose in FNAF 2

The Freddy Fazbear head mask serves as a primary defensive tool for the security guard, Jeremy Fitzgerald, in Five Nights at Freddy's 2. The intention behind wearing the mask is to deceive most of the animatronics into believing the guard is one of their own, thereby preventing them from attacking. This strategy is crucial for survival against the various animatronics that actively roam the pizzeria at night.

Animatronics Immune to the Mask's Deception

While a majority of the animatronics are deterred by the mask, two specific characters remain unaffected by this trick and require alternative defensive strategies:

• Foxy: Unlike other animatronics that will retreat or pause their approach when the mask is donned, Foxy is not fooled by it. He will continue his relentless advance regardless of whether Jeremy is wearing the mask, necessitating a different counter-measure.
• The Puppet (also known as The Marionette): The Puppet also operates outside the mask's sphere of influence. Its behavior and threat level are primarily governed by the music box in the Prize Corner, which must be continuously wound up to keep it contained. The mask offers no protection or deterrent against the Puppet's pursuit once it has been agitated.

Why the Mask Fails Against Certain Animatronics

The mask's effectiveness is limited against Foxy and the Puppet because they appear to operate under different detection parameters or have unique attack mechanics compared to the other animatronics. While many animatronics rely on visual cues that the mask can successfully exploit, Foxy and the Puppet either recognize the player through different means or are simply programmed not to react to the mask at all, establishing them as distinct threats requiring specialized handling.

Strategies Against Unfooled Animatronics

To successfully navigate nights and defend against Foxy and the Puppet, players must employ specific strategies beyond merely using the mask:

• Against Foxy: Instead of relying on the mask, the primary defense against Foxy involves flashing the flashlight at him repeatedly when he appears in the Main Hallway. This action can temporarily deter him and reset his attack progression.
• Against The Puppet: The music box located in the Prize Corner must be wound constantly throughout the night. If the music box's melody stops playing, the Puppet will emerge, and once it has left its box, there is no way to stop its inevitable jump scare, regardless of whether the mask is worn.

Overview of Mask Effectiveness

Here's a quick overview detailing how the mask generally affects different animatronics in FNAF 2: