Special Stages · Stage 5

Whose Ball is This?

これは何組の玉ですか

Whose Ball is This? is a Battle Cats stage in River City Ball-Rolling. It costs 150 energy and sends 8 enemy spawn lines — led by Large Red Ball as the boss — against a 120,000 HP enemy base, and clearing it rewards 21,150 XP. Its enemies carry the Metal and Red traits, so cats that target them do the most work here.

Data updated: 2026-09-15

150Energy Cost
21,150XP Reward
120,000Enemy Base HP
4,500Stage Length
15Max Enemies
5.2Difficulty
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Cats that counter Whose Ball is This?

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

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

Stage rewards

50% — XP ×155,00050% — XP ×110,000

Enemy spawns (8)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Large Iron Ball150%113.3s—100%—
Large White Ball6000%126.7s—100%—
Large Red Ball600%140s—100%—
Large White Ball6000%70s13.3s~16.7s99%—
Large Red Ball600%50s20s~23.3s99%—
Large Iron Ball150%30s26.7s~30s99%—
Large Red Ball1%10s—99%Boss
Ms. Sign100%∞900s900s100%—
All River City Ball-Rolling stages