Collaboration Stages · Stage 8
300 Yard Strike
ひとふり300ヤード
300 Yard Strike is a Battle Cats stage in Merc Storia: Showdown. It costs 125 energy and sends 8 enemy spawn lines — led by Wyvern (Enemy) as the boss — against a 400,000 HP enemy base, and clearing it rewards 17,625 XP. Its enemies carry the Floating trait, so cats that target it do the most work here.
Data updated: 2026-08-31
125Energy Cost
17,625XP Reward
400,000Enemy Base HP
6,000Stage Length
6Max Enemies
5.2Difficulty
Enemy spawns (8)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Aura (Enemy) | 100% | 1 | 53.3s | — | 100% | — |
 Yoichi (Enemy) | 400% | ∞ | 33.3s | 40s | 100% | — |
| Yoichi (Enemy) | 400% | 1 | 34.7s | — | 100% | — |
 Serum (Enemy) | 300% | ∞ | 46.7s | 53.3s | 100% | — |
| Serum (Enemy) | 300% | 1 | 47.3s | — | 100% | — |
 Healer (Enemy) | 100% | 1 | 13.3s | — | 100% | — |
 Wyvern (Enemy) | 100% | 1 | 93.3s | — | 100% | Boss |
 Ms. Sign | 1200% | ∞ | 900s | 900s | 100% | — |