With a major spoiler from the outset, imagine and episode of Bear Grylls mixed with the Predator (1987) and an alien design reminiscent of District 9 (2009) and you'll sort of get feel of Man Vs. Half of the fun of director Adam Massey's offering is guessing for the first half what is the main character up against.
Man Vs. echoes the likes of Exists, Blackfoot Trail, Bigfoot County (2012) Bigfoot: The Lost Coast Tapes (2012) Willow Creek (2013), The Hunted (2013) while not a found footage film per say, thankfully it's a mix of presenter Doug's camera views, go-pro POVs and a traditionally shot film perspective (similar to REC 3 (2012) and The Pyramid (2014).
In terms of execution Massey's film surpasses genre expectations due to traditional shot segments and well executed practical and 'monster' special effects in the last quarter. It has a very small cast ensemble. Thanks to a great performance from Chris Diamantopoulos as Doug, channelling Grylls, he single handily keeps Man Vs. interesting while he does his TV show bits for the majority of the film and believes he's being hunted by a bear, wolf or even a crazy fan of his show.
The Canadian natural forest setting framed by Miroslaw Baszak sells Massey's story. Writer Thomas Michael leaves enough clues - skinned bodies, chess boards, black goo, dead fish to keep you guessing what Doug is up against but if you've seen 10 Cloverfield Lane (2016) you'll see the twist coming. That said, Michael and Massey successfully create a small scale paranoia tale on the backdrop peripheral of something larger going on. John Rowley's score is effective throughout, but especially in the closing where realisation hits Doug and rescue by his team and acquaintance are skewed.
While the genre is worn, if you like the aforementioned movies you'll get a kick out of Massey's addition to the genre.
Review by amesmonde from the Internet Movie Database.