Infected Grumbles are a group of boss entities in The Lost Floors, serving as the boss of The Tunnels section and as a secondary threat in The Blast Door section. A total of two infected Grumbles appears during a run: one in The Tunnels and one in The Blast Door.
Appearance
Infected Grumbles are giant, beige-colored creatures covered in Seek's goo. They have 8 tentacles, a giant smiling mouth full of teeth, a tongue, small lips, two glowing white eyes with several smaller eyes above and below them with the same color and two lines above the mouth, supposedly being a nose.
Behavior
If a player is in the line of sight of an Infected Grumble, it will start chasing them while laughing deeply. If its line of sight of a player is broken, it will stop chasing a player and continue to traverse the room. If an Infected Grumble touches a player, it will swallows them, killing them instantly.
Related Achievements
| Image | Name | Quote | Description |
|---|---|---|---|
 |
Try Again. I'll wait. | He'd be proud of me. | Crucify an Infected Grumble. |
 |
Seamless Escape | Don't mind if I do! | Escape the Grumbles. |