Main Chapters · Stage 21

Cats of the Cosmos Ch. 1 — Stage 21

アルデバラン

Cats of the Cosmos Ch. 1 — Stage 21 is a Battle Cats stage in Cats of the Cosmos Ch. 1. It costs 73 energy and sends 6 enemy spawn lines against a 180,000 HP enemy base, and clearing it rewards 7,000 XP. Its enemies carry the Red and Alien traits, so cats that target them do the most work here.

Data updated: 2026-08-31

73Energy Cost
7,000XP Reward
180,000Enemy Base HP
3,900Stage Length
10Max Enemies
6.2Difficulty
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Cats that counter Cats of the Cosmos Ch. 1 — Stage 21

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

Warlock and PierreChun-LiThunder JackLovestruck Lesser DemonTakeda ShingenNezuko Kamado

Enemy spawns (6)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Ginger Snache100%∞0.1s23.3s100%—
Shibalien Elite100%520s20s100%—
Sir Seal1000%333.3s20s100%—
Star Peng100%253.3s20s100%—
Pigge1000%353.3s40s100%—
Ms. Sign100%∞900s900s100%—
All Cats of the Cosmos Ch. 1 stages