The Human Centipede didn't just spawn sequels that leaned into meta-commentary and escalating filth; it changed how we talk about "extreme" art. It became a litmus test for audiences and a frequent punchline in everything from South Park to late-night monologues. It remains the ultimate example of a "concept film"—a movie where the title alone tells you everything you need to know, yet nothing can truly prepare you for the clinical, quiet, and suffocating experience of watching it unfold.

Academic papers often analyze the films through the lens of and the "embodied spectator."