This is a typical teenager/slasher flick. There are numerous scenes depicting creature violence including slashing, throat cut, entrails ripped out, animals killed and more.
All these are overly bloody and gory to the extent that they do not appear real but rather contrived. Teenagers and adults should not be overly disturbed by these scenes unless they are particularly sensitive. This is the tone of the entire movie. It is not intended to be taken in the least seriously.