This movie is combined with slasher movies like Scream (1996) with the time traveling of the movie Back to the Future (1985) along with it being a horror comedy, and that is why I saw this movie. The movie Totally Killer (2023) was a fun and entertaining slasher movie with an interesting idea, good performances, an entertaining killer, and some funny moments; but there are some slight issues with the movie involving the use of the time traveling or the slasher part of the movie. Also, the whole 1987 setting when she goes to the past was well done, and felt like we were in that year, even when certain things are exaggerated for the movie.
I liked the main character Jamie Hughs played by Kiernan Shipka and thought she did an excellent job as this teenager accidentally going back in time and trying to stop this killer; I also liked how Jamie and her younger mom, played by Olivia Holt, bonded despite not knowing that much about the year 1987 or 2023. Jamie Hughs's teenage mom played by Olivia Holt was also good in the movie, and much like the other teenage versions of people Jamie knows, they are either unlikable or annoying, but you can tell that it is intentional because they are teenagers in the 80's.
The Sweet Sixteen Killer had a simple looking design with a weird mask, and 80's looking clothes; he stabs people sixteen times, and it is cool seeing him killing people, but I would have liked to see more variety on how he kills someone than just stabbing them. Though it was entertaining to watch him show up to kill people, I would have liked more of him, because there were moments in the movie that I wanted him to show up in. I liked the use of time traveling in this, but it was explained too much on how it works, when they could have used it more; the movie was funny at times with it making fun of certain things in the 80's and referencing Back to the Future (1985) on how time works.
The reveal of the killer could have been better, but the movie has a fun fight against the killer and a cool third act climax on spinning ride at an amusement park. Despite some of the issues, Totally Killer (2023) was a fun and entertaining horror comedy like Happy Death Day (2017) or Freaky (2020) that people would like if they liked those movies; there might people who do not like horror comedies with some people just wanting a horror movie and some just wanting a comedy movie, but as long as you have fun and are entertained by the movie then you will like it.
