Main Chapters · Stage 21
Into the Future Ch. 3 (Zombie) — Stage 21
フィリピン
Into the Future Ch. 3 (Zombie) — Stage 21 is a Battle Cats stage in Into the Future Ch. 3 (Zombie). It costs 66 energy and sends 10 enemy spawn lines against a 364,000 HP enemy base, and clearing it rewards 7,000 XP. Its enemies carry the Zombie, Red and Alien traits, so cats that target them do the most work here.
Data updated: 2026-08-31
66Energy Cost
7,000XP Reward
364,000Enemy Base HP
4,800Stage Length
10Max Enemies
9.1Difficulty
Enemy spawns (10)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 The Thrillerz | 150% | ∞ | 6.7s | 5s~6.7s | 100% | — |
 Sir Seal | 2400% | 1 | 13.3s | — | 100% | — |
 Imperator Sael | 1400% | 1 | 30s | — | 100% | — |
 Le'boin | 2400% | ∞ | 40s | 53.3s~80s | 100% | — |
| Sir Seal | 2400% | 1 | 60s | — | 100% | — |
| Sir Seal | 2400% | 1 | 63.3s | — | 100% | — |
| Imperator Sael | 1400% | 1 | 80s | — | 100% | — |
| Sir Seal | 2400% | ∞ | 90s | 33.3s~50s | 100% | — |
 Zir Zeal | 250% | 2 | 26.7s | 33.3s~50s | 100% | — |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |