Special Stages · Stage 3Special 100kg Ball重量100kgの特別玉1★ 100%2★ 150%3★ 200%4★ 300%100Energy Cost21,150XP Reward60,000Enemy Base HP3,200Stage Length20Max Enemies4.1Difficulty Test your team vs this stageStage rewards40% — XP ×40,00060% — XP ×18,000Enemy spawns (5)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesLarge Iron Ball100%110s—100%—Large Iron Ball100%20s16.7s~20s99%—Large Iron Ball100%30s10s99%—Large Iron Ball10%10s—99%BossMs. Sign100%∞900s900s100%—All River City Ball-Rolling stages