Collaboration Stages · Stage 1VS KEN (Expert)VSケン 激ムズ200Energy Cost169,200XP Reward250,000Enemy Base HP3,800Stage Length6Max Enemies6.1Difficulty Test your team vs this stageStage rewards100% — XP ×400,000 · first clearEnemy spawns (12)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesB.B.Bunny800%55s3.3s~6.7s100%—B.B.Bunny800%530s6.7s~13.3s100%—B.B.Bunny800%∞80s10s~20s100%—Sir Seal800%320s3.3s~10s100%—B.B.Bunny800%∞0s10s~20s99%—Sir Seal800%∞0s33.3s~40s99%—Pigge800%30s0.1s99%—B.B.Bunny800%30s0.1s99%—Pigge800%∞0s26.7s~30s99%—One Horn800%30s40s99%—Ken (Enemy)100%10s—99%BossMs. Sign100%∞900s900s100%—All New Challenger stages