Stories of Legend · Stage 4

OS Graveyard

Mrs.ドスの墓

OS Graveyard is a Battle Cats stage in IT Catacombs. It costs 155 energy and sends 4 enemy spawn lines — led by Professor A. as the boss — against a 400,000 HP enemy base, and clearing it rewards 124,573 XP. Its enemies carry the Red, Floating and Black traits, so cats that target them do the most work here.

Data updated: 2026-08-31

155Energy Cost
124,573XP Reward
400,000Enemy Base HP
3,600Stage Length
2Max Enemies
9.2Difficulty
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Cats that counter OS Graveyard

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

Chun-LiLovestruck Lesser DemonTakeda ShingenBunny & CanardDaybreaker IzanagiMighty Rekon Korps

Stage rewards

10% — XP ×294,500 · first clear · Treasure Radar1% — Speed Up ×1

Enemy spawns (4)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Professor A.150%10.1s—100%Boss
Teacher Bun Bun1500%133.3s—100%—
Bun Bun Black200%126.7s—100%—
Ms. Sign100%∞900s900s100%—
All IT Catacombs stages