Collaboration Stages · Stage 2
A Tower Piercing the Sky (Insane)
天を貫く大要塞 超激ムズ
A Tower Piercing the Sky (Insane) is a Battle Cats stage in Devilish Illusion. It costs 150 energy and sends 9 enemy spawn lines — led by Wondermaria (Enemy) as the boss — against a 400,000 HP enemy base, and clearing it rewards 18,800 XP. Its enemies carry the Red, Black and Floating traits, so cats that target them do the most work here.
Data updated: 2026-08-31
150Energy Cost
18,800XP Reward
400,000Enemy Base HP
4,000Stage Length
9Max Enemies
7.1Difficulty
Enemy spawns (9)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Sir Seal | 1200% | 2 | 0s | 6.7s~13.3s | 100% | — |
 St. Pigge the 2nd | 600% | 1 | 20s | — | 100% | — |
| Sir Seal | 1200% | 3 | 40s | 3.3s~10s | 100% | — |
 Doge Dark | 400% | ∞ | 0s | 20s~30s | 99% | — |
 Shadow Boxer K | 150% | 8 | 0s | 20s | 99% | — |
 Shy Boy | 800% | 4 | 0s | 30s~33.3s | 99% | — |
 Dark Emperor Nyandam | 600% | 1 | 0s | — | 99% | — |
 Wondermaria (Enemy) | 100% | 1 | 0s | — | 99% | Boss |
 Ms. Sign | 100% | ∞ | 900s | 900s | 100% | — |