The Resident Evil merged monster began with real people strapped together and trying to roll as one body, according to behind-the-scenes footage from movement coordinator Jakub Hudlicky. The rehearsal footage, reported by IGN, shows the physical work behind the creature fans have nicknamed the “Katamari monster”.
The monster is a mass of infected bodies, arms and legs that chases Bryan through Raccoon City. Hudlicky said the videos were filmed in July 2025, when the stunt team was working out how the creature could move. Performers wore vests and faced different directions as they tumbled across a soundstage.
The final creature was built with visual effects rather than dropped into the film as a group of stunt performers. Hudlicky explained that the footage was not used directly, but that its movement broadly mimics the CGI monster seen on screen.
Resident Evil merged monster movement started as a physical stunt
The practical rehearsal gave the visual-effects team a movement reference that could not be supplied by a tennis ball or a performer waving at empty space. The group had to establish how a creature made from several bodies could roll, change direction and keep its limbs readable while moving.
ComicBook.com reports that Zach Cregger initially asked performers to attempt a five-person continuous cartwheel. Cregger later said the test lacked agility and made the performers’ heads too visible, while WETA’s early digital mock-up better matched the film’s needs.
That makes the Resident Evil merged monster a hybrid of physical performance and digital construction, rather than a purely practical effect. Dread Central also notes that the footage shows movement development, not proof that every finished shot used the performers directly.
What the footage does and does not show
The clips explain how the creature’s motion was developed, but they do not show the final monster being filmed exactly as seen in the movie. The bodies in rehearsal were reference material; the finished creature was assembled digitally by WETA.
It is another practical detail from Cregger’s Resident Evil, which has already supplied several production stories, including Austin Abrams’ account of a dangerous zombie scene and the director’s explanation of the film’s changed ending at tbreak.com. The monster may be computer-generated, but its strange rolling gait began with a room full of people agreeing to become one very awkward organism.
Is the Resident Evil merged monster made from real performers?
The finished creature is a visual-effects creation, but real performers supplied movement reference during early development.
Why did the film use stunt performers first?
A physical group let the filmmakers test how several bodies could roll and change direction before the digital creature was built.
Is the rehearsal footage in the final Resident Evil movie?
No. Hudlicky said the footage was not used directly, although the creature’s movement mimics the rehearsal.
