Floor 4

Difficulty: ★4
Energy: 120
XP: 2,280
Base HP: 100,000
Length: 5,000
Max enemies: 6

Rewards

One of these:

250,000 XP · 100% chance · once only

Enemies

Black Slug100%
At 3.3s, 5 total, every 16.7s
30,0001,250815170
Black Slug100%
At 86.7s, 4 total, every 20s
30,0001,250815170
Black Slug100%
At 170s, Unlimited, every 23.3–26.7s
30,0001,250815170

Enemy	Spawns	HP	Damage	Range	Details
Black Slug100%	At 3.3s5 total, every 16.7s	30,000	1,250815 DPS	170
Black Slug100%	At 86.7s4 total, every 20s	30,000	1,250815 DPS	170
Black Slug100%	At 170sUnlimited, every 23.3–26.7s	30,000	1,250815 DPS	170

Like most stages, this one also sends a Ms. Sign if the battle goes past 15 minutes.