The Monster Hunter segment was edited from the original video. It shows test footage, created by Mr.X Inc, of a Rathalos and Gore Magala fighting in a shopping mall.
This footage appeared in Mr.X Inc's 2016 sizzle reel, uploaded back in September 2016. Mr.X Inc is a VFX studio, who have worked on many films, including Paul W.S. Anderson's Resident Evil series.
Capcom announced that a Monster Hunter live-action movie was in development in September 2016. Paul W.S. Anderson mentioned that he was working on adapting the Monster Hunter games to film in an interview with Deadline in November 2016.