Collaboration Stages · Stage 2Don't Act Like You Know Me馴れなれしく名前を呼ばないで1★ 100%2★ 200%3★ 300%Data updated: 2026-07-2470Energy Cost10,575XP Reward50,000Enemy Base HP5,200Stage Length15Max Enemies3.3Difficulty Build a lineup for this stage Test your team vs this stageStage rewards10% — Redhead Yuki Cat · first clear · Treasure RadarEnemy spawns (12)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesLost World Yuki (Enemy)50%16.7s—100%BossSir Seal200%110s—100%—B.B.Bunny200%314.7s0.7s~1.3s100%—Doge Dark100%134.7s—100%—Sir Seal200%355.3s1.3s~2s100%—B.B.Bunny200%461.3s1.3s~2s100%—Doge Dark100%288.7s1.3s~2s100%—Sir Seal200%4124.7s1.3s~2.7s100%—B.B.Bunny200%4130.7s0.7s~2s100%—Doge Dark100%4152s1.3s~2.7s100%—B.B.Bunny200%∞186.7s10s~16.7s100%—Ms. Sign100%∞900s900s100%—All The Lost World stages