Special Stages · Stage 2

You in a Petri Dish

プレパラートに映るキミ

You in a Petri Dish is a Battle Cats stage in Spring for Sensei. It costs 180 energy and sends 3 enemy spawn lines — led by Ms. Madonna as the boss — against a 250,000 HP enemy base, and clearing it rewards 16,074 XP.

Data updated: 2026-08-31

180Energy Cost
16,074XP Reward
250,000Enemy Base HP
6,000Stage Length
25Max Enemies
6.2Difficulty
Build a lineup for this stage Test your team vs this stage

Stage rewards

100% — Lucky Ticket G ×1 · first clear45% — Lucky Ticket G ×1

Enemy spawns (3)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Teacher A400%150s—100%—
Ms. Madonna150%110s—100%Boss
Ms. Sign100%∞900s900s100%—
All Spring for Sensei stages