Theory how Simon is able to detect brud.

Upon the in his horror description. he is most likely to blind due to the absence of eyes. However, some are saying this isn't true because he was able to find and bite brud. If Simon was Blind and has no struggle to find and eat brud's face. I think there is another reason to this.

My common theory about Simon is that he likely had a strong sense of smell. This works well in Horror as I do believe that Simon is indeed blind and even has visible nostrils that help him smell and maybe rely on other senses to help him navigate. About brud, I think another reason why Simon is able to detect him despite his blindness could be because brud releases a unique odor that Simon can detect far better to that of other sprunkis. Which makes brud an easier target and victim.