Collaboration Stages · Merc Storia: Mystery · 3/3

Energy90
Clear XP2,700
Base HP150,000
Map length4,200
Max enemies6
Spawn interval0.03s
Enemy traits TraitlessFloating

Boss

Enemies 7 types

Enemy Count Mag. HP Attack First Respawn
From the start 4 types
Yoichi 1 600% 22,800 4,680 Start
Olga Unlimited 600% 14,400 1,440 12s 26.67–40s
Norn 3 600% 19,200 2,580 20s 26.67–40s
Yoichi 1 600% 22,800 4,680 60s
Yoichi 1 600% 22,800 4,680 66.67s
Ms. Sign Unlimited 100% 10,000 1 900s 900s
Once base HP ≤ 99% 3 types
Orthos 3 600% 28,800 2,400 Immediately 20–30s
Orthos 8 600% 28,800 2,400 Immediately 6.67–10s
Michelia 1 300% 120,000 6,000 Immediately
Todomeki Boss 1 100% 320,000 8,000 Immediately

HP and attack include the magnification. Identical spawn lines are merged (2×7 = seven lines that each spawn 2). Enemies with a base HP condition start appearing once it is met.

Spawn timeline

Scroll sideways to see more. The number under each enemy is when it appears (seconds). For enemies with a base HP condition, move the slider to set when the condition is met.

An estimate using the game's spawn rules. Ranged intervals use the midpoint, and the on-screen enemy limit is ignored, so when many enemies pile up they appear later than shown.

Score rewards

Earned when your battle score reaches that value.