Chamber bosses and challenges
Defeat the Chaos Chamber mini-boss after three rooms
The halfway mini-boss is a required combat checkpoint on the standard Chamber route.
Standard Chaos Chamber run: three randomized encounter rooms, a mini-boss, three further rooms, and the final boss.
Repeat the standard run whenever you want another Chamber clear; the mini-boss is part of the run sequence.
Stop after using the reward room, or change to Chaos Trial if raising Chaos Level is your next goal.
Open a guide to find other locations and see what the item is used for.
The halfway mini-boss is a required combat checkpoint on the standard Chamber route.