There are many weird monsters in "R.E.P.O.", and the Invisible is one of them. This guy is an almost invisible entity. His only feature is that there is a cloud of black smoke where his head should be, and the footprints it left behind.
What are the characteristics of the REPO Invisible Monster
Name: Hidden
Number of layers: 1
Kill reward: Unknown
Behavior: A nearly invisible entity, the only characteristic is that there is a cloud of black smoke where its head should be, and the footprints it leaves behind. It should also be noted that it has quite loud footsteps and keeps making strong breathing sounds. If it hits the player, it screams and catches them, takes them as far away as possible, or takes them to the other end of the level at high speed. When you are caught by the Hidden One, you will be stunned and drop whatever item you catch.
Tip: I've only encountered this entity once, so I believe it is very rare. It is almost impossible to distinguish the direction and where it faces. Many times, there may be something hidden in the current level you are in and you don't realize it until it catches you or your teammates. The most dangerous aspect of Hidden is that it may drag you into other enemies, but it is not a big threat in itself. Although it's hard to do, if you react quickly, it's possible to get your teammates out of trouble. They can also be killed, although this can also be difficult because of their invisibility.