: Because the Huang brothers made the assets publicly available and free to use , they became the default choice for thousands of amateur animators starting their own "Object Shows".

In BFDI, characters are often depicted with distinct and exaggerated features, including their mouths, which can express a wide range of emotions and are sometimes used as a focal point for comedic effect or character development.

A complete BFDI mouth asset pack typically includes these 6 shapes:

The Asset Manager flickered, and a holographic wireframe of Four appeared. It was transparent. Inside, Four could see layer after layer: a circle_base.svg , a limb_left_pose3.png , and right in the center, a small, labeled folder: .

: "Smile Teeth Big" (standard for late BFDI/BFDIA), "Smile Open 4," and "Smile Big Open L".

A shift toward hand-drawn facial features, making the animation appear "looser" and more fluid.