Collaboration Stages · Stage 5
Secret Police
警視庁の密偵
Secret Police is a Battle Cats stage in Rurouni Kenshin. It costs 120 energy and sends 10 enemy spawn lines — led by Hajime Saito (Enemy) as the boss — against a 100,000 HP enemy base, and clearing it rewards 16,920 XP. Its enemies carry the Red and Floating traits, so cats that target them do the most work here.
Data updated: 2026-08-31
120Energy Cost
16,920XP Reward
100,000Enemy Base HP
4,000Stage Length
12Max Enemies
5.1Difficulty
Enemy spawns (10)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Those Guys | 400% | 10 | 6.7s | 3.3s~6.7s | 100% | — |
 B.B.Bunny | 400% | 5 | 10s | 6.7s~10s | 100% | — |
 Sir Seal | 400% | 3 | 16.7s | 20s~26.7s | 100% | — |
| Those Guys | 400% | ∞ | 6.7s | 6.7s~13.3s | 99% | — |
| B.B.Bunny | 400% | ∞ | 10s | 13.3s~20s | 99% | — |
| Sir Seal | 400% | ∞ | 16.7s | 20s~26.7s | 99% | — |
 Mooth | 400% | 1 | 0s | — | 99% | — |
 St. Pigge the 2nd | 200% | 2 | -6.7s | 30s | 99% | — |
 Hajime Saito (Enemy) | 60% | 1 | 0s | — | 99% | Boss |
 Ms. Sign | 100% | 1 | 900s | — | 100% | — |