Underground B31~39/41~49/51~59F

Boss

• Professor A. 100% magnification HP320,000 Attack6,800 AppearsBase HP ≤ 99%

Enemies 3 types

Enemy	Count	Mag.	HP	Attack	First	Respawn
From the start 2 types
B.B.Bunny	25	3000%	15,000	1,500	13.33s	0.67–1s
B.B.Bunny	10	3000%	15,000	1,500	13.33s	4–6s
J.J. Jackrabbit	2	100%	65,000	9,000	33.33s	20–26.67s
Once base HP ≤ 99% 3 types
B.B.Bunny	Unlimited	3000%	15,000	1,500	Immediately	10–13.33s
J.J. Jackrabbit	6	100%	65,000	9,000	Immediately	30–33.33s
Professor A. Boss	1	100%	320,000	6,800	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.