Underground Labyrinth · Stage 91

Underground B91F

地底91層

Underground B91F is a Battle Cats stage in Underground Labyrinth: The Grand Deep. It costs 50 energy and sends 8 enemy spawn lines — led by Dober P.D as the boss — against a 200,000 HP enemy base, and clearing it rewards 2,820 XP. Its enemies carry the Aku trait, so cats that target it do the most work here.

Data updated: 2026-08-31

50Energy Cost
2,820XP Reward
200,000Enemy Base HP
5,500Stage Length
20Max Enemies
9.4Difficulty
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Cats that counter Underground B91F

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

Thunder JackLovestruck Lesser DemonBunny & CanardDaybreaker IzanagiMighty Rekon KorpsCake Machine

Stage rewards

50% — XP ×500,000 · Treasure Radar

Enemy spawns (8)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Cerberus Kids200%520s0.7s~1s100%—
Cerberus Kids200%533.3s0.7s~1s100%—
Cerberus Kids200%580s0.7s~1s100%—
Cerberus Kids200%5126.7s0.7s~1s100%—
Cerberus Kids200%5173.3s0.7s~1s100%—
Cerberus Kids200%∞20s13.3s~16.7s99%—
Celeboodle200%∞20s13.3s~16.7s99%—
Dober P.D100%126.7s—99%Boss
All Underground Labyrinth: The Grand Deep stages