Collaboration Stages · Stage 1Swarm of Spiders蠢く無数の蜘蛛1★ 100%2★ 150%50Energy Cost8,460XP Reward10,000Enemy Base HP4,000Stage Length12Max Enemies2.1Difficulty Test your team vs this stageEnemy spawns (4)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesThose Guys100%206.7s13.3s~20s100%—Those Guys100%7-3.3s6.7s~13.3s99%—Rui7%10s—99%BossMs. Sign100%∞900s900s100%—All Battle at Mt. Natagumo stages