Otherworld Colosseum · Stage 4
Round 4
Round 4 is a Battle Cats stage in Otherworld Colosseum 2. It costs 200 energy and sends 10 enemy spawn lines — led by Razorback as the boss — against a 1,800,000 HP enemy base, and clearing it rewards 17,860 XP. Its enemies carry the Aku, Floating and Black traits, so cats that target them do the most work here.
Data updated: 2026-08-31
200Energy Cost
17,860XP Reward
1,800,000Enemy Base HP
5,200Stage Length
10Max Enemies
11.1Difficulty
Enemy spawns (10)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Kang Roo | 4000% | 2 | 10s | 26.7s~30s | 100% | — |
 Devil Wife | 500% | 1 | 20s | — | 100% | — |
 Li'l Bun Bun | 1500% | ∞ | 36.7s | 50s~53.3s | 100% | — |
 Razorback | 100% | 1 | 0s | — | 99% | Boss |
 Midnite D. | 100% | 3 | 0s | 40s~43.3s | 99% | — |
| Kang Roo | 4000% | ∞ | 0s | 46.7s~50s | 99% | — |
 Ackey | 100% | 2 | 0s | 73.3s~76.7s | 99% | — |
| Devil Wife | 500% | 3 | -46.7s | 46.7s~50s | 99% | — |
| Razorback | 100% | 1 | -46.7s | — | 99% | — |
| Li'l Bun Bun | 1500% | 4 | -46.7s | 26.7s~30s | 99% | — |