Collaboration Stages · Stage 6
Lost Memories
失われた記憶
Lost Memories is a Battle Cats stage in Merc Storia: Showdown. It costs 105 energy and sends 8 enemy spawn lines — led by Healer (Enemy) as the boss — against a 180,000 HP enemy base, and clearing it rewards 14,805 XP. Its enemies carry the Floating trait, so cats that target it do the most work here.
Data updated: 2026-08-31
105Energy Cost
14,805XP Reward
180,000Enemy Base HP
3,700Stage Length
6Max Enemies
5.1Difficulty
Enemy spawns (8)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Celesse (Enemy) | 400% | ∞ | 0s | 16.7s~30s | 100% | — |
 Nono (Enemy) | 400% | ∞ | 3.3s | 16.7s~30s | 100% | — |
 Yoichi (Enemy) | 400% | ∞ | 6.7s | 16.7s~30s | 100% | — |
 Serum (Enemy) | 400% | 2 | 0s | 1s~2s | 80% | — |
| Serum (Enemy) | 400% | ∞ | 0s | 16.7s~23.3s | 80% | — |
 Norn (Enemy) | 400% | ∞ | 0s | 10s~16.7s | 80% | — |
 Healer (Enemy) | 100% | 1 | 0s | — | 80% | Boss |
 Ms. Sign | 800% | ∞ | 900s | 900s | 100% | — |