Main Chapters · Stage 21
Into the Future Ch. 2 — Stage 21
フィリピン
Into the Future Ch. 2 — Stage 21 is a Battle Cats stage in Into the Future Ch. 2. It costs 56 energy and sends 11 enemy spawn lines against a 97,500 HP enemy base, and clearing it rewards 7,000 XP. Its enemies carry the Alien and Red traits, so cats that target them do the most work here.
Data updated: 2026-08-31
56Energy Cost
7,000XP Reward
97,500Enemy Base HP
4,800Stage Length
8Max Enemies
6.1Difficulty
Enemy spawns (11)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Snache | 800% | 10 | 10s | 5s~10s | 100% | — |
 Those Guys | 800% | 10 | 13.3s | 5s~10s | 100% | — |
 Shibalien | 250% | ∞ | 16.7s | 16s~24s | 100% | — |
 Imperator Sael | 250% | 1 | 30s | — | 100% | — |
 Sir Seal | 800% | 1 | 40s | — | 100% | — |
 Le'boin | 800% | ∞ | 60s | 53.3s~80s | 100% | — |
| Imperator Sael | 250% | 1 | 70s | — | 100% | — |
| Sir Seal | 800% | 1 | 80s | — | 100% | — |
| Sir Seal | 800% | 1 | 83.3s | — | 100% | — |
| Sir Seal | 800% | ∞ | 100s | 33.3s~50s | 100% | — |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |