Special Stages · Stage 1
An Elder Secret (Merciless)
古代の神秘 極ムズ
An Elder Secret (Merciless) is a Battle Cats stage in Growing Strange. It costs 300 energy and sends 19 enemy spawn lines — led by Mr. Angel as the boss — against a 500,000 HP enemy base, and clearing it rewards 28,200 XP. Its enemies carry the Angel, Red, Floating, Alien, Black, Zombie and Metal traits, so cats that target them do the most work here.
Data updated: 2026-08-31
300Energy Cost
28,200XP Reward
500,000Enemy Base HP
4,500Stage Length
8Max Enemies
10.1Difficulty
Enemy spawns (19)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Mr. Angel | 200% | 2 | 10s | 1.3s | 100% | — |
 Ginger Snache | 400% | 1 | 20s | — | 100% | — |
| Ginger Snache | 400% | ∞ | 22.7s | 53.3s | 100% | — |
 Berserkory | 150% | 1 | 0.1s | — | 99% | — |
| Mr. Angel | 200% | 4 | 0.1s | 0.1s | 99% | — |
 Maawth | 1600% | 1 | 0.1s | — | 99% | — |
 Shadow Boxer K | 200% | 1 | 0.1s | — | 99% | — |
 Zory | 200% | 1 | 0.1s | — | 99% | — |
| Zory | 200% | 1 | 0.1s | — | 99% | — |
| Ginger Snache | 400% | 3 | 0.1s | 0.1s | 99% | — |
 Pigeon de Sable | 300% | 1 | 0.1s | — | 99% | — |
| Pigeon de Sable | 300% | 1 | 0.1s | — | 99% | — |
| Pigeon de Sable | 300% | 1 | 0.1s | — | 99% | — |
 Heavenly Hippoe | 500% | 2 | 0.1s | 0.1s | 99% | — |
 Metal One Horn | 300% | 1 | 0.1s | — | 99% | — |
| Ginger Snache | 400% | 5 | 0.1s | 5s~10s | 99% | — |
| Mr. Angel | 200% | 2 | 0.1s | 0.1s | 99% | — |
| Mr. Angel | 10% | 1 | 0.1s | — | 99% | Boss |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |