Special Stages · Stage 5

U + Me = Photosynthesis

キミとボクとの光合成

U + Me = Photosynthesis is a Battle Cats stage in Spring for Sensei. It costs 300 energy and sends 13 enemy spawn lines — led by Ms. Madonna as the boss — against a 450,000 HP enemy base, and clearing it rewards 26,790 XP. Its enemies carry the Red and Floating traits, so cats that target them do the most work here.

Data updated: 2026-08-31

300Energy Cost
26,790XP Reward
450,000Enemy Base HP
4,000Stage Length
6Max Enemies
8.2Difficulty
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Cats that counter U + Me = Photosynthesis

Cats whose attacks target Red and Floating, best DPS first — the traits this stage’s enemies actually carry:

Chun-LiLovestruck Lesser DemonBunny & CanardDaybreaker IzanagiMighty Rekon KorpsSea Maiden Ruri

Stage rewards

100% — Lucky Ticket G ×3 · first clear30% — Lucky Ticket G ×270% — Lucky Ticket G ×1

Enemy spawns (13)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Ms. Madonna300%10s—99%Boss
Squire Rel1800%40s1.7s~3.3s99%—
B.B.Bunny1800%40s1.7s~3.3s99%—
Teacher Bun Bun600%10s—99%Boss
Squire Rel1800%80s1.7s~3.3s99%—
B.B.Bunny1800%80s1.7s~3.3s99%—
Ginger Snache200%1016.7s3.3s~6.7s99%—
Owlbrow400%516.7s30s99%—
Teacher A600%10s—99%Boss
Teacher Bear1800%10s—100%—
Squire Rel1800%105.3s3.3s~6.7s100%—
B.B.Bunny1800%100s1.7s~3.3s100%—
Ms. Sign100%∞900s900s100%—
All Spring for Sensei stages