Advent Stages

Advent Stages are a type of time-limited stage that appears twice a month for two days each. All Advent Stages contain a unique boss, are unlocked after clearing Into the Future Chapter 1, are No Continues stages, have a difficulty of Deadly. Once encountered, the boss will be recorded in the Enemy Guide. If the stage is completed, there is a chance to unlock a new, unique Rare or Super Rare (30-40% success rate), as well as at least 3800 XP, 30 Cat Food and 1 Leadership for the first victory.

List of Advent Stages

Name	Boss	Cat	Appearance Dates
Clionel Ascendant	Cruel Angel Clionel	Catway	7/8/21/22
River Styx	Hannya	Express Cat	11/12/25/26
Queen's Coronation	Queen B	Little Leaguer Cat	1/2/15/16
Dead on Debut	Daboo of the Dead	Curling Cat	3/4/17/18
King Wahwah's Revenge	King Wahwah	Glass Cat	5/6/19/20
Deeply Dreaming	Bakoo	Lone Cat and Kitten	9/10/23/24