Floor 28

Boss

• Mr. Mer 100% magnification HP1,250,000 Attack16,000 AppearsBase HP ≤ 99%

Enemies 8 types

Enemy	Count	Mag.	HP	Attack	First	Respawn
From the start 4 types
Metal One Horn	1	300%	2,400	9,600	0.07s	—
Metal Doge	Unlimited	300%	90	6,000	26.67s	30s
Metal Doge	Unlimited	300%	90	6,000	27.67s	30s
Metal Doge	Unlimited	300%	90	6,000	28.67s	30s
Metal Doge	Unlimited	300%	90	6,000	29.67s	30s
Loincloth Cat	1	150%	270,000	2,400	20s	—
Loincloth Cat	5	150%	270,000	2,400	200s	20–30s
Ms. Sign	Unlimited	100%	10,000	1	900s	900s
Once base HP ≤ 99% 7 types
Super Metal Hippoe	2	200%	16,000	6,000	Immediately	40–60s
Super Metal Hippoe	3	200%	16,000	6,000	Immediately	40s
Metal Hippoe	Unlimited	300%	240	600	Immediately	33.33–100s
Metal Doge	2	300%	90	6,000	Immediately	0.07s
Metal Hippoe	1	300%	240	600	Immediately	—
Sir Metal Seal	1	200%	44,000	13,398	Immediately	—
Metal One Horn	3	300%	2,400	9,600	Immediately	30–40s
Loincloth Cat	5	150%	270,000	2,400	Immediately	30–40s
Mr. Mer Boss	1	100%	1,250,000	16,000	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.