Main Chapters · Stage 20
The Aku Realms — Stage 20
京都府
The Aku Realms — Stage 20 is a Battle Cats stage in The Aku Realms. It costs 113 energy and sends 12 enemy spawn lines — led by Fallen Bear as the boss — against a 500,000 HP enemy base, and clearing it rewards 6,700 XP. Its enemies carry the Aku, Alien and Floating traits, so cats that target them do the most work here.
Data updated: 2026-08-31
113Energy Cost
6,700XP Reward
500,000Enemy Base HP
4,800Stage Length
7Max Enemies
8.3Difficulty
Enemy spawns (12)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Aku Altar (Enemy Base) | 500% | 1 | 0.1s | — | 0% | Enemy base |
 Cerberus Kids | 200% | ∞ | 3.3s | 10s~16.7s | 100% | — |
 Helmut Krabbe | 300% | 3 | 3.3s | 13.3s~16.7s | 100% | — |
 Scissoroo | 300% | 1 | 13.3s | — | 100% | — |
 Shibalien | 300% | 10 | 23.3s | 23.3s~30s | 100% | — |
 Condemned Peng | 100% | 1 | 26.7s | — | 100% | — |
| Helmut Krabbe | 300% | 4 | 0.1s | 20s~23.3s | 99% | — |
| Condemned Peng | 100% | 5 | 0.1s | 20s~23.3s | 99% | — |
| Scissoroo | 300% | 2 | 0.1s | 36.7s~43.3s | 99% | — |
 Calamary | 100% | 1 | 0.1s | — | 99% | — |
 Fallen Bear | 100% | 1 | 0.1s | — | 99% | Boss |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |