Collaboration Stages · Stage 1
VS KEN (Expert)
VSケン 激ムズ
VS KEN (Expert) is a Battle Cats stage in New Challenger. It costs 200 energy and sends 12 enemy spawn lines — led by Ken (Enemy) as the boss — against a 250,000 HP enemy base, and clearing it rewards 169,200 XP. Its enemies carry the Red trait, so cats that target it do the most work here.
Data updated: 2026-08-31
200Energy Cost
169,200XP Reward
250,000Enemy Base HP
3,800Stage Length
6Max Enemies
6.1Difficulty
Enemy spawns (12)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 B.B.Bunny | 800% | 5 | 5s | 3.3s~6.7s | 100% | — |
| B.B.Bunny | 800% | 5 | 30s | 6.7s~13.3s | 100% | — |
| B.B.Bunny | 800% | ∞ | 80s | 10s~20s | 100% | — |
 Sir Seal | 800% | 3 | 20s | 3.3s~10s | 100% | — |
| B.B.Bunny | 800% | ∞ | 0s | 10s~20s | 99% | — |
| Sir Seal | 800% | ∞ | 0s | 33.3s~40s | 99% | — |
 Pigge | 800% | 3 | 0s | 0.1s | 99% | — |
| B.B.Bunny | 800% | 3 | 0s | 0.1s | 99% | — |
| Pigge | 800% | ∞ | 0s | 26.7s~30s | 99% | — |
 One Horn | 800% | 3 | 0s | 40s | 99% | — |
 Ken (Enemy) | 100% | 1 | 0s | — | 99% | Boss |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |