Collaboration Stages · Merc Storia: Showdown · 6/8

Energy105
Clear XP3,150
Base HP180,000
Map length3,700
Max enemies6
Spawn interval0.03s
Enemy traits FloatingTraitless

Boss

Enemies 7 types

Enemy Count Mag. HP Attack First Respawn
From the start 4 types
Celesse Unlimited 400% 1,000 200 Start 16.67–30s
Nono Unlimited 400% 2,600 600 3.33s 16.67–30s
Yoichi Unlimited 400% 15,200 3,120 6.67s 16.67–30s
Ms. Sign Unlimited 800% 80,000 8 900s 900s
Once base HP ≤ 80% 3 types
Serum 2 400% 36,800 2,400 Immediately 1–2s
Serum Unlimited 400% 36,800 2,400 Immediately 16.67–23.33s
Norn Unlimited 400% 12,800 1,720 Immediately 10–16.67s
Healer Boss 1 100% 299,999 3,250 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.

Clear rewards

If the reward chances add up to more than 100, the rows are rolled in order and each later row shares what is left.

Score rewards

Earned when your battle score reaches that value.