Battle Cats Wiki
Eve l 138 en

Resident Undead (アンデッドハザード, Andeddo Hazādo, Undead Hazard) is a set of special stages. It is unlocked after clearing Empire of Cats Chapter 1. Each stage features Zombie Enemies and has a Cat Ticket as a reward.

Event Information[]

The Zombies have suddenly mutated and are holding the Cat Empire captive under an endless siege!
Clear the stages, fight off the Zombies, and earn up to 10 Cat Tickets from drop rewards!
During this event, visit the Legend Stages from the Battle Cats title menu and select the Resident Undead map under the Special Stages section to take on this challenge.
On between April 1st (11:00am) and April 8th (10:59am)!

Can your Cats destroy this new Zombie menace?!

※ After clearing a stage, there will be a short cooldown period before you are able to challenge the next stage.
※ Spending a Catamin A will allow you to skip the stage cooldown period and challenge the next stage immediately.
※ If the event does not appear, please make sure that you are updated to the latest version of the Battle Cats app.

List of Levels[]

Mapname336 s en Mapname336 s ja Difficulty
Translation Energy
Stage 1 Mapsn336 00 s en Tosuzen Hen'i Lv Mutation Lv.1 60 EnergyIcon
Stage 2 Mapsn336 01 s en Tosuzen Hen'i Lv Mutation Lv.2 60 EnergyIcon
Stage 3 Mapsn336 02 s en Tosuzen Hen'i Lv Mutation Lv.3 90 EnergyIcon
Stage 4 Mapsn336 03 s en Tosuzen Hen'i Lv Mutation Lv.4 90 EnergyIcon
Stage 5 Mapsn336 04 s en Tosuzen Hen'i Lv Mutation Lv.5 120 EnergyIcon
Stage 6 Mapsn336 05 s en Tosuzen Hen'i Lv Mutation Lv.6 120 EnergyIcon
Stage 7 Mapsn336 06 s en Tosuzen Hen'i Lv Mutation Lv.7 150 EnergyIcon
Stage 8 Mapsn336 07 s en Tosuzen Hen'i Lv Mutation Lv.8 150 EnergyIcon
Stage 9 Mapsn336 08 s en Tosuzen Hen'i Lv Mutation Lv.9 180 EnergyIcon
Stage 10 Mapsn336 09 s en Tosuzen Hen'i Lv Mutation Lv.MAX 180 EnergyIcon

First Appearance[]

English Version[]

  • June 19th, 2023 to June 26th, 2023

Japanese Version[]

  • April 10th, 2023 to April 17th, 2023



  • Both the English and Japanese names of this event are likely references to the horror game series Resident Evil, known as Biohazard in Japan.