Underground Labyrinth · Stage 57
Underground B57F
地底57層
Underground B57F is a Battle Cats stage in Underground Labyrinth: The Grand Deep. It costs 40 energy and sends 7 enemy spawn lines — led by Cadaver Bear as the boss — against a 800,000 HP enemy base, and clearing it rewards 2,256 XP. Its enemies carry the Zombie trait, so cats that target it do the most work here.
Data updated: 2026-08-31
40Energy Cost
2,256XP Reward
800,000Enemy Base HP
5,300Stage Length
4Max Enemies
9.1Difficulty
Enemy spawns (7)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Those Guys | 4000% | ∞ | 3.3s | 6.7s~10s | 100% | — |
 Baa Baa | 3000% | ∞ | 10s | 10s~13.3s | 100% | — |
 Znache | 250% | 2 | 16.7s | 10s~16.7s | 100% | — |
| Baa Baa | 3000% | 10 | 10s | 3.3s~6.7s | 99% | — |
| Znache | 250% | 4 | 16.7s | 23.3s~30s | 99% | — |
 Duche | 1000% | 3 | 33.3s | 30s~33.3s | 99% | — |
 Cadaver Bear | 200% | 1 | 53.3s | — | 99% | Boss |