After the village full of cats they come across a torn up section of open ground, like the dungeon residents have been fighting each other. That's new, usually when the dungeon drives its inhabitants mad they're all on the same team, even if they naturally wouldn't be. But this is definitely the scene of a battle that happened before they arrived.
"Were Tigers and someone else." Nemu says and Vala nods agreement. So the dungeons control must be weak, or something unique is going on here. They did have the incident with the posing boys preferring flirting to fighting earlier too.
This dark forest feels like an extension of the one behind them by the swamp, full of wolf and spider species. Which makes Cain wonder how big this dungeon actually is. The Dwarves don't often go far from the entrance because the Beastkin get tougher, but it might be just as massive as the Demon Dungeon.