Special Stages · Stage 2
Revenge of Red Sky (Merciless)
絶撃の暴風渦 超極ムズ
Revenge of Red Sky (Merciless) is a Battle Cats stage in Red Sky at Night. It costs 200 energy and sends 13 enemy spawn lines — led by The Perfect Cyclone as the boss — against a 900,000 HP enemy base, and clearing it rewards 17,860 XP. Its enemies carry the Angel and Floating traits, so cats that target them do the most work here.
Data updated: 2026-08-31
200Energy Cost
17,860XP Reward
900,000Enemy Base HP
4,500Stage Length
10Max Enemies
10.1Difficulty
Enemy spawns (13)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Heavenly Hippoe | 400% | 1 | 8.3s | — | 100% | — |
| Heavenly Hippoe | 400% | 1 | 13.3s | — | 100% | — |
| Heavenly Hippoe | 400% | 1 | 20s | — | 100% | — |
 Angelic Gory | 250% | 1 | 40s | — | 100% | — |
| Heavenly Hippoe | 400% | 1 | 56.7s | — | 100% | — |
| Heavenly Hippoe | 400% | 1 | 58.3s | — | 100% | — |
| Heavenly Hippoe | 400% | 1 | 61.7s | — | 100% | — |
| Heavenly Hippoe | 400% | 1 | 66.7s | — | 100% | — |
| Heavenly Hippoe | 400% | 1 | 73.3s | — | 100% | — |
 Gabriel | 400% | ∞ | 0.1s | 25s~50s | 99% | — |
| Gabriel | 400% | 10 | 0.1s | 5s~10s | 99% | — |
 Angelic Sleipnir | 250% | 1 | 0.1s | — | 99% | — |
 The Perfect Cyclone | 130% | 1 | 0.1s | — | 99% | Boss |