This is low budget that gleefully pummels blockbusters to shame with unrelenting crazy awesome. Upgrade is intense and slick action-scifi with a darkly horrific core. The direction and cinematography are phenomenal and the intelligent script does an excellent job of world-building and providing levels of stimulation. At the core is a revenge tale seeped in technological terrors and body horror that rarely feels outside possibility. There is satire and dark humor at play that offsets the intensity and numerous gut-churning twists. Upgrade has a fairly short running time but rarely squanders any moment, barely slowing down once hijinks begin. And the hijinks are exquisite, providing amazingly innovative and visceral action sequences that exponentially intensify to a satisfying conclusion.