Special Stages · Stage 9

Mutation Lv.9

突然変異Lv.9

Mutation Lv.9 is a Battle Cats stage in Resident Undead. It costs 180 energy and sends 6 enemy spawn lines — led by Lord Gravey as the boss — against a 800,000 HP enemy base, and clearing it rewards 25,380 XP. Its enemies carry the Zombie trait, so cats that target it do the most work here.

Data updated: 2026-08-31

180Energy Cost
25,380XP Reward
800,000Enemy Base HP
6,000Stage Length
14Max Enemies
10.2Difficulty
Build a lineup for this stage Test your team vs this stage

Cats that counter Mutation Lv.9

Cats whose attacks target Zombie, best DPS first — the traits this stage’s enemies actually carry:

Lovestruck Lesser DemonNezuko KamadoDaybreaker IzanagiMighty Rekon KorpsBalrogZangief

Stage rewards

100% — Cat Ticket ×1 · first clear

Enemy spawns (6)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Coffin Zoge300%106.7s26.7s~30s100%—
Big Sal200%310s40s~46.7s100%—
The Thrillerz200%1516.7s16.7s~20s100%—
Znache300%∞20s10s~13.3s100%—
Lord Gravey200%16.7s—100%Boss
Ms. Sign100%∞900s900s100%—
All Resident Undead stages