Special Stages · Stage 3

Aku Studies 201: Field Research

悪魔研究Ⅱ 発見

Aku Studies 201: Field Research is a Battle Cats stage in Empress' Report 2. It costs 100 energy and sends 6 enemy spawn lines against a 800,000 HP enemy base, and clearing it rewards 8,930 XP. Its enemies carry the Red, Aku and Alien traits, so cats that target them do the most work here.

Data updated: 2026-08-31

100Energy Cost
8,930XP Reward
800,000Enemy Base HP
5,500Stage Length
10Max Enemies
9.3Difficulty
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Cats that counter Aku Studies 201: Field Research

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

Warlock and PierreChun-LiThunder JackLovestruck Lesser DemonTakeda ShingenNezuko Kamado

Stage rewards

100% — Treasure Radar ×1 · first clear

Enemy spawns (6)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Capy150%26.7s70s~76.7s100%—
Aku Doge500%∞16.7s23.3s~30s100%—
Elder Sloth300%133.3s—100%—
Ginger Snache300%1033.3s16.7s~23.3s100%—
Aku Gory250%446.7s50s~56.7s100%—
Ms. Sign100%∞900s900s100%—
All Empress' Report 2 stages