Special Stages · Stage 4
World Invasion
日本侵略!
World Invasion is a Battle Cats stage in Pt. 5 Musical Parade. It costs 150 energy and sends 12 enemy spawn lines — led by B.B.Bunny as the boss — against a 180,000 HP enemy base, and clearing it rewards 87,420 XP. Its enemies carry the Red trait, so cats that target it do the most work here.
Data updated: 2026-08-31
150Energy Cost
87,420XP Reward
180,000Enemy Base HP
4,200Stage Length
9Max Enemies
5.1Difficulty
Enemy spawns (12)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 B.B.Bunny | 400% | 3 | 8s | 26.7s~30s | 100% | — |
| B.B.Bunny | 400% | 3 | 9s | 26.7s~30s | 100% | — |
| B.B.Bunny | 400% | 3 | 10s | 26.7s~30s | 100% | — |
 Pigge | 400% | 2 | 16.7s | 5s~10s | 100% | — |
 One Horn | 400% | 1 | 33.3s | — | 100% | — |
| B.B.Bunny | 400% | ∞ | 66.7s | 20s~30s | 100% | — |
| B.B.Bunny | 400% | ∞ | 100s | 20s~30s | 100% | — |
 Sir Seal | 400% | 5 | 0s | 16.7s | 99% | — |
| Pigge | 400% | 10 | 0s | 6.7s~10s | 99% | — |
 St. Pigge the 2nd | 400% | 5 | 0s | 6.7s~10s | 99% | — |
| B.B.Bunny | 400% | 1 | 0s | — | 99% | Boss |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |