Continuation Stages · Stage 1

Puffer Planet (Merciless)

リバーピッグプラネット 超極ムズ

Puffer Planet (Merciless) is a Battle Cats stage in 亡者と河豚EX. It costs 0 energy and sends 8 enemy spawn lines — led by Puffsley's Comet as the boss — against a 999,999 HP enemy base, and clearing it rewards 17,860 XP. Its enemies carry the Alien trait, so cats that target it do the most work here.

Data updated: 2026-08-31

0Energy Cost
17,860XP Reward
999,999Enemy Base HP
5,000Stage Length
12Max Enemies
9.3Difficulty
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Cats that counter Puffer Planet (Merciless)

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

Warlock and PierreChun-LiThunder JackLovestruck Lesser DemonTakeda ShingenNezuko Kamado

Enemy spawns (8)

EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotes
Puffsley's Comet100%120s—100%Boss
Corporal Weyland2400%350s40s~50s100%—
Project A2400%180s—100%—
Star Peng2400%426.7s16.7s~20s100%—
Star Peng2400%4100s13.3s~16.7s100%—
Star Peng2400%4160s10s~13.3s100%—
Star Peng2400%∞206.7s40s~50s100%—
Ms. Sign100%∞900s900s100%—
All 亡者と河豚EX stages