Underground Labyrinth · Stage 61Underground B61F地底61層50Energy Cost2,820XP Reward800,000Enemy Base HP4,000Stage Length30Max Enemies9.4Difficulty Test your team vs this stageStage rewards50% — XP ×500,000 · Treasure RadarEnemy spawns (5)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesSir Seal2600%86.7s26.7s100%—Sir Seal2600%88.3s26.7s100%—Sir Seal2600%810s26.7s100%—B.B.Bunny2600%∞13.3s13.3s~16.7s100%—Red EnerG100%333.3s40s100%—All Underground Labyrinth: The Grand Deep stages