Underground Labyrinth · Stage 31

Underground B31F

地底31層

Underground B31F is a Battle Cats stage in Underground Labyrinth: The Grand Deep. It costs 40 energy and sends 4 enemy spawn lines against a 600,000 HP enemy base, and clearing it rewards 2,256 XP. Its enemies carry the Black, Angel and Colossus traits, so cats that target them do the most work here.

Data updated: 2026-08-31

40Energy Cost
2,256XP Reward
600,000Enemy Base HP
4,800Stage Length
30Max Enemies
9.1Difficulty
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Cats that counter Underground B31F

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

Chun-LiLovestruck Lesser DemonTakeda ShingenDaybreaker IzanagiMighty Rekon KorpsMusashi Miyamoto

Stage rewards

50% — XP ×300,000 · Treasure Radar

Enemy spawns (4)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Shadow Boxer K200%420s23.3s~30s100%—
Doge Dark600%∞23.3s13.3s~16.7s100%—
Great Angel Chibinel100%140s—100%—
Doge Dark600%1090s10s~13.3s100%—
All Underground Labyrinth: The Grand Deep stages