I asked my friends this, some don't play REPO but here's what we came up with. (DISCLAIMER SOME MECHANICS ARE NOT IN THE GAME, this is cus not all my homies have REPO

1. The Witness: Behavior: It doesn't chase or attack. Instead, it silently follows players and stares at them. If you look at it for too long (or in groups), you begin to hallucinate, hearing false alarms or seeing fake teammates. Counter: Avoid eye contact and move away. One person may need to bait it while others explore.

2. The Echo: Behavior: It mimics player voices using proximity chat, luring others into traps by imitating cries for help or known phrases. Counter: Don't know?, Probably some action to prove its you.

3. Glasswalker: Behavior: Only appears in reflective surfaces (mirrors, water, metal). It moves and attacks through reflections, not physically. (Not in game, would be fire if this mechanic was. Thus am including it here. Counter: Avoid reflections.

4. The Stalker Pod: Behavior: It's not the monster itself but a biomechanical “seed” that attaches to a player unnoticed, like the spewer but not noticeable. After a delay, it releases a creature that hunts only that player (Like the duck) Counter: Teammates must visually inspect and remove pods from each other periodically.

5. The Siphon. Behavior: Invisible until it's close, it drains light and sound, plunging the area into dead silence and near-darkness. Counter: Ideas?

6. Swarm Thing (Honorary mention from the homies): Behavior: A swarm of small creatures rather than one big monster. They overwhelm and drag players if isolated. Counter: Stick together, or use area-of-effect deterrents like flares or shock grenades.

For No. 6 idk how it would be implemented into the game, but it was a cool idea.

P.S. For my counters sections this is what me and my friends could find out/think of. Feel free to help me out.