Special Stages · Stage 4
Brute Force Trial
拳の修行
Brute Force Trial is a Battle Cats stage in Ep. 4: Secret Training. It costs 150 energy and sends 13 enemy spawn lines — led by Teacher Bun Bun as the boss — against a 300,000 HP enemy base, and clearing it rewards 352,500 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
352,500XP Reward
300,000Enemy Base HP
4,000Stage Length
30Max Enemies
6.1Difficulty
Enemy spawns (13)
| Enemy | Strength | Count | First Spawn | Respawn | Base HP Trigger | Notes |
|---|---|---|---|---|---|---|
 Boulder | 350% | 2 | 6.7s | 20s~26.7s | 100% | — |
 Red Wind | 500% | 1 | 10s | — | 100% | — |
 Dark Wind | 500% | 1 | 16.7s | — | 100% | — |
| Dark Wind | 500% | 7 | -1.3s | 33.3s~40s | 99% | — |
| Red Wind | 500% | 4 | -6.7s | 33.3s~46.7s | 99% | — |
 Log | 350% | 15 | -0.7s | 13.3s~20s | 99% | — |
| Boulder | 350% | 10 | -5s | 13.3s~16.7s | 99% | — |
| Boulder | 350% | 5 | -16.7s | 16.7s~26.7s | 99% | — |
| Dark Wind | 500% | 3 | -33.3s | 6.7s~13.3s | 99% | — |
| Log | 350% | 10 | -60s | 6.7s~13.3s | 99% | — |
| Red Wind | 500% | 3 | -60s | 3.3s~6.7s | 99% | — |
| Boulder | 350% | 2 | -66.7s | 6.7s~13.3s | 99% | — |
 Teacher Bun Bun | 400% | 1 | 0s | — | 99% | Boss |