Special Stages · Stage 2
Extinction's Vortex (Merciless)
絶滅の古渦 超極ムズ
Extinction's Vortex (Merciless) is a Battle Cats stage in Typhoon Nihil. It costs 200 energy and sends 8 enemy spawn lines — led by Primeval Cyclone as the boss — against a 1,250,000 HP enemy base, and clearing it rewards 17,860 XP. Its enemies carry the Angel, Relic and Alien traits, so cats that target them do the most work here.
Data updated: 2026-08-31
200Energy Cost
17,860XP Reward
1,250,000Enemy Base HP
5,000Stage Length
12Max Enemies
10.3Difficulty
Enemy spawns (8)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Squire Rel | 4000% | ∞ | 16.7s | 5s~10s | 100% | — |
 Gabriel | 500% | 10 | 16.7s | 5s~10s | 100% | — |
 Relic Doge | 100% | 5 | 33.3s | 5s~10s | 100% | — |
 Star Peng | 2500% | 3 | 50s | 6.7s~10s | 100% | — |
 Chickful A | 250% | 5 | 0s | 30s | 99% | — |
 Corporal Weyland | 2500% | 3 | 0s | 33.3s~40s | 99% | — |
 Angelic Sleipnir | 250% | 1 | 0s | — | 99% | — |
 Primeval Cyclone | 100% | 1 | 0s | — | 99% | Boss |