Collaboration Stages · Stage 3A Mystery Girl謎の少女1★ 100%2★ 200%3★ 300%Data updated: 2026-07-2450Energy Cost7,050XP Reward75,000Enemy Base HP4,400Stage Length12Max Enemies3.1Difficulty Build a lineup for this stage Test your team vs this stageStage rewards3% — Takuya ＆ Yuki · first clear · Treasure RadarEnemy spawns (12)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesDoge100%85s8s~12s100%—Snache100%88s8.3s~14.7s100%—Those Guys100%810s10s~16.7s100%—Sir Seal100%120s—100%—Le'boin200%126.7s—100%—B.B.Bunny100%∞80s16.7s~26.7s100%—Pigge100%∞100s26.7s~40s100%—Those Guys100%∞120s16.7s~26.7s100%—Sir Seal100%50.1s16.7s99%—One Horn100%10.1s—99%—Yuki (Enemy)50%10.1s—99%BossMs. Sign200%∞900s900s100%—All 消滅都市 ～第１章～(旧) stages