Otherworld Colosseum · Stage 1
Round 1
Round 1 is a Battle Cats stage in Otherworld Colosseum 24. It costs 200 energy and sends 10 enemy spawn lines — led by Ursamajor as the boss — against a 2,000,000 HP enemy base, and clearing it rewards 17,860 XP. Its enemies carry the Aku and Alien traits, so cats that target them do the most work here.
Data updated: 2026-08-31
200Energy Cost
17,860XP Reward
2,000,000Enemy Base HP
4,500Stage Length
20Max Enemies
10.1Difficulty
Enemy spawns (10)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Aku Doge | 400% | 3 | 3.3s | 26.7s~33.3s | 100% | — |
 Devil Wife | 500% | 1 | 10s | — | 100% | — |
 Star Peng | 2500% | 1 | 20s | — | 100% | — |
| Aku Doge | 400% | 6 | 0s | 33.3s~40s | 99% | — |
 Condemned Peng | 400% | 2 | 0s | 46.7s~53.3s | 99% | — |
 Miz Devil | 400% | 9 | -13.3s | 20s~26.7s | 99% | — |
| Star Peng | 2500% | 2 | -20s | 46.7s~53.3s | 99% | — |
| Devil Wife | 500% | 2 | -40s | 46.7s~53.3s | 99% | — |
 Elizabeth the LVIth | 1500% | 1 | -3.3s | — | 99% | — |
 Ursamajor | 1600% | 1 | 0s | — | 99% | Boss |