Underground Labyrinth · Stage 20

Underground B20F

地底20層

Underground B20F is a Battle Cats stage in Underground Labyrinth: The Grand Deep. It costs 300 energy and sends 8 enemy spawn lines — led by Trolly Blogger as the boss — against a 350,000 HP enemy base, and clearing it rewards 1,692 XP. Its enemies carry the Red trait, so cats that target it do the most work here.

Data updated: 2026-08-31

300Energy Cost
1,692XP Reward
350,000Enemy Base HP
4,500Stage Length
20Max Enemies
8.3Difficulty
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Cats that counter Underground B20F

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

Chun-LiLovestruck Lesser DemonBunny & CanardDaybreaker IzanagiMighty Rekon KorpsSea Maiden Ruri

Stage rewards

100% — Catseye [Legend] ×1

Enemy spawns (8)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Those Guys1800%∞6.7s13.3s~16.7s100%—
Ginger Snache200%313.3s13.3s~16.7s100%—
Trolly Blogger200%513.3s0.7s~1s100%—
Trolly Blogger200%540s0.7s~1s100%—
Trolly Blogger200%2040s2s~4s99%—
Trolly Blogger200%140s—99%Boss
Ginger Snache200%∞20s13.3s~16.7s99%—
Capy100%226.7s26.7s~30s99%—
All Underground Labyrinth: The Grand Deep stages