Collaboration Stages · Stage 5
The Fastest Hedgehog Alive
史上最速のハリネズミ
The Fastest Hedgehog Alive is a Battle Cats stage in Green Hill Zone. It costs 120 energy and sends 7 enemy spawn lines — led by Sonic (Enemy) as the boss — against a 100,000 HP enemy base, and clearing it rewards 16,920 XP. Its enemies carry the Red trait, so cats that target it do the most work here.
Data updated: 2026-08-31
120Energy Cost
16,920XP Reward
100,000Enemy Base HP
5,500Stage Length
20Max Enemies
5.1Difficulty
Enemy spawns (7)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Master A. | 100% | 1 | 0.3s | — | 100% | — |
 Croco | 400% | ∞ | 6.7s | 6.7s~16.7s | 100% | — |
 Jackie Peng | 400% | 5 | 8s | 23.3s~30s | 100% | — |
 Sir Seal | 400% | ∞ | 10s | 33.3s~40s | 100% | — |
 Sonic (Enemy) | 400% | 1 | 33.3s | — | 100% | Boss |
 Teacher Bear | 400% | 1 | 13.3s | — | 100% | — |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |