Special Stages · Stage 8

Mutation Lv.8

突然変異Lv.8

Mutation Lv.8 is a Battle Cats stage in Resident Undead. It costs 150 energy and sends 9 enemy spawn lines against a 650,000 HP enemy base, and clearing it rewards 21,150 XP. Its enemies carry the Black and Zombie traits, so cats that target them do the most work here.

Data updated: 2026-08-31

150Energy Cost
21,150XP Reward
650,000Enemy Base HP
5,500Stage Length
16Max Enemies
9.4Difficulty
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Cats that counter Mutation Lv.8

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

Chun-LiLovestruck Lesser DemonTakeda ShingenNezuko KamadoDaybreaker IzanagiMighty Rekon Korps

Stage rewards

100% — Cat Ticket ×1 · first clear

Enemy spawns (9)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Doge Dark800%∞3.3s13.3s~16.7s100%—
Dark Otter200%330s26.7s~33.3s100%—
Doge Dark800%30s3.3s~6.7s99%—
Dark Otter200%10s—99%—
Zoge250%∞0s10s~13.3s100%—
Zigge250%520s26.7s~30s100%—
Li'l Zyclone100%340s40s100%—
Zapy100%160s—100%—
Ms. Sign100%∞900s900s100%—
All Resident Undead stages