Main Chapters · Stage 45
N77 Nebula
N77星雲
N77 Nebula is a Battle Cats stage in Cats of the Cosmos Ch. 2 (Zombie). It costs 87 energy and sends 12 enemy spawn lines — led by Project A as the boss — against a 462,000 HP enemy base, and clearing it rewards 14,200 XP. Its enemies carry the Zombie, Alien and Metal traits, so cats that target them do the most work here.
Data updated: 2026-08-31
87Energy Cost
14,200XP Reward
462,000Enemy Base HP
4,000Stage Length
20Max Enemies
9.4Difficulty
Enemy spawns (12)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Coffin Zoge | 200% | 5 | 1.3s | 26.7s~33.3s | 100% | — |
 Squire Rel | 3000% | ∞ | 3.3s | 13.3s~16.7s | 100% | — |
 UltraBaaBaa | 1200% | 3 | 5.3s | 26.7s~36.7s | 100% | — |
 Metal Doge | 200% | 5 | 6.7s | 26.7s~40s | 100% | — |
 Metal Hippoe | 200% | 2 | 1s | 4s~5.3s | 100% | — |
 Metal One Horn | 200% | 1 | 40s | — | 100% | — |
 Project A | 2300% | 1 | 46.7s | — | 100% | Boss |
 Zamelle | 200% | 1 | 56.7s | — | 100% | — |
 Kroxo | 1350% | 3 | 50s | 10s~23.3s | 100% | — |
| Metal Hippoe | 200% | 1 | 63.3s | — | 100% | — |
| Metal Hippoe | 200% | 1 | 66.7s | — | 100% | — |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |