The hardest difficulty chaos is unlocked by beating a crystal code red boss that reflects damage either set it on simple or use your own reflect from.
Berseria floor 2 ex dungeon.
Between the foul fire.
Right in front of the ember on the stairs not hidden at all.
Just to clarify this early for you the very 1st floor with the 3 enemy spawns do not have a katz to increase the timer unlike the floors after that.
For tales of berseria on the playstation 4 a gamefaqs message board topic titled ex dungeon guide.
Don t touch the foul floor.
They are meant to test the player s battle abilities with strong opponents many of them being cameos of playable characters from previous entries in the series and often contain.
It s by far the hardest part about the entire ex dungeon.
How to find the ex dungeons guys i did not finish the game yet.
No kats floor 2.
In a bush near the narrow pathway to the exit.
I forget but i think its close to your spawn floor 4.
Do this on normal never go to simple as enemies lose their weaknesses resulting in a major dmg loss for you.
Beat this basilik and proceed to the area where you could find katz.
The extra dungeon can only be unlocked after beating the final boss of the story.
In the same way as before in places such as the ruins you must pay a dark fire.
If you are facing the exit it will be on your right.