Collaboration Stages · Stage 2
Iron Will (Expert)
一心同体にょろ！ 激ムズ
Iron Will (Expert) is a Battle Cats stage in Date Chance: Karin. It costs 150 energy and sends 6 enemy spawn lines — led by Karin Nekozuka (Enemy) as the boss — against a 200,000 HP enemy base, and clearing it rewards 21,150 XP. Its enemies carry the Black trait, so cats that target it do the most work here.
Data updated: 2026-08-31
150Energy Cost
21,150XP Reward
200,000Enemy Base HP
5,700Stage Length
10Max Enemies
6.1Difficulty
Enemy spawns (6)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Karin Nekozuka (Enemy) | 100% | 1 | 13.3s | — | 100% | Boss |
 Squire Rel | 4000% | ∞ | 3.3s | 6.7s~8.3s | 100% | — |
 Gory | 3000% | 5 | 20s | 16.7s | 100% | — |
 Gory Dark | 200% | 2 | 36.7s | 30s | 100% | — |
| Gory Dark | 200% | 2 | 106.7s | 2s | 100% | — |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |