Underground Labyrinth · Stage 66

Underground B66F

地底66層

Underground B66F is a Battle Cats stage in Underground Labyrinth: The Grand Deep. It costs 50 energy and sends 8 enemy spawn lines — led by Corporal Weyland as the boss — against a 800,000 HP enemy base, and clearing it rewards 2,820 XP. Its enemies carry the Floating and Alien traits, so cats that target them do the most work here.

Data updated: 2026-08-31

50Energy Cost
2,820XP Reward
800,000Enemy Base HP
5,400Stage Length
10Max Enemies
9.4Difficulty
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Cats that counter Underground B66F

Cats whose attacks target Floating and Alien, best DPS first — the traits this stage’s enemies actually carry:

Warlock and PierreChun-LiThunder JackLovestruck Lesser DemonTakeda ShingenNezuko Kamado

Stage rewards

50% — Catseye [Super Rare] ×2 · Treasure Radar

Enemy spawns (8)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Brollow100%316.7s23.3s~26.7s100%—
Brollow100%230s16.7s~20s100%—
Brollow100%256.7s3.3s~6.7s100%—
Cyberhorn800%10.1s—99%—
Brollow100%1-13.3s—99%—
Brollow100%2-33.3s2s~4s99%—
Brollow100%2-66.7s2s~4s99%—
Corporal Weyland1100%10.1s—99%Boss
All Underground Labyrinth: The Grand Deep stages