Underground Labyrinth · Stage 58
Underground B58F
地底58層
Underground B58F is a Battle Cats stage in Underground Labyrinth: The Grand Deep. It costs 40 energy and sends 8 enemy spawn lines — led by B.B.Bunny as the boss — against a 800,000 HP enemy base, and clearing it rewards 2,256 XP. Its enemies carry the Red and Aku traits, so cats that target them do the most work here.
Data updated: 2026-08-31
40Energy Cost
2,256XP Reward
800,000Enemy Base HP
4,000Stage Length
7Max Enemies
9.1Difficulty
Enemy spawns (8)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 B.B.Bunny | 3000% | ∞ | 0.7s | 4s~6s | 100% | — |
 Pigge | 3000% | 3 | 13.3s | 2s~4s | 100% | — |
 Sir Seal | 3000% | 3 | 40s | 2s~4s | 100% | — |
| Sir Seal | 3000% | 3 | -26.7s | 40s~43.3s | 99% | — |
| Pigge | 3000% | 8 | 13.3s | 20s~26.7s | 99% | — |
| B.B.Bunny | 100% | 1 | 13.3s | — | 99% | Boss |
 Fallen Bear | 150% | 1 | 33.3s | — | 99% | — |
| Fallen Bear | 150% | 1 | -33.3s | — | 99% | — |