Felipe Fritz’s review published on Letterboxd:
They really made the act of playing a videogame with a walkthrough into a movie.
Upgrade has incredible action scenes, a very cool premise and a really entertaining performance by Tom Har- eh, I mean Logan Marshall-Green.
The pacing can feel very rushed which makes many moments (particularly the ending) feel like they lack the effect they were going for, not to mention the unnecessarily complicated twist and often weak dialogue. But nonetheless, it's a great action movie.
What really elevates the film and makes up for a lot of its issues is how the whole plot works as a metaphor for being consumed by revenge.