Collaboration Stages · Stage 3
I'll Do What I Must
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I'll Do What I Must is a Battle Cats stage in Battle! Tamakoma Second's Leader. It costs 120 energy and sends 5 enemy spawn lines — led by Osamu Mikumo & Doge as the boss — against a 45,000 HP enemy base, and clearing it rewards 62,040 XP.
Data updated: 2026-08-31
120Energy Cost
62,040XP Reward
45,000Enemy Base HP
4,800Stage Length
10Max Enemies
4.1Difficulty
Enemy spawns (5)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Kang Roo | 200% | 5 | 3.3s | 33.3s | 100% | — |
| Kang Roo | 200% | 1 | 0s | — | 99% | — |
 Teacher Bear | 200% | 2 | 0s | 26.7s | 99% | — |
 Osamu Mikumo & Doge | 100% | 1 | 0s | — | 99% | Boss |
 Ms. Sign | 100% | 1 | 900s | — | 100% | — |