Main Chapters · Stage 18
Cats of the Cosmos Ch. 3 — Stage 18
シリウス
Cats of the Cosmos Ch. 3 — Stage 18 is a Battle Cats stage in Cats of the Cosmos Ch. 3. It costs 88 energy and sends 7 enemy spawn lines — led by I.M. Phace as the boss — against a 515,000 HP enemy base, and clearing it rewards 6,100 XP. Its enemies carry the Alien and Floating traits, so cats that target them do the most work here.
Data updated: 2026-08-31
88Energy Cost
6,100XP Reward
515,000Enemy Base HP
5,500Stage Length
10Max Enemies
9.2Difficulty
Enemy spawns (7)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Kroxo | 1600% | 7 | 10s | 16.7s~26.7s | 100% | — |
 Croco | 4000% | ∞ | 10s | 3.3s~10s | 100% | — |
 I.M. Phace | 1000% | 1 | 10s | — | 100% | Boss |
 Cyberhorn | 800% | 1 | 30s | — | 100% | — |
| Croco | 4000% | ∞ | 100s | 6.7s~10s | 100% | — |
 Gardeneel Bros. | 150% | 1 | 20s | — | 100% | — |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |