Collaboration Gauntlets · Stage 15Why Not Become a Demon? Lv.15お前も鬼にならないか？ Lv.15Data updated: 2026-07-24130Energy Cost11,609XP Reward850,000Enemy Base HP4,500Stage Length15Max Enemies9.4Difficulty Build a lineup for this stage Test your team vs this stageStage rewards100% — Red Catfruit ×3 · first clear · Treasure RadarEnemy spawns (12)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesDemon Doge3222%∞3.3s33.3s~40s100%—Aku Doge544%110s—100%—Doge Dark978%226.7s33.3s~40s100%—Devil Wife444%120s—100%—Aku Gory244%20s120s~126.7s99%—Aku Doge544%2-3.3s60s~66.7s99%—Aku Doge544%2-133.3s60s~66.7s99%—Doge Dark978%3-26.7s80s~86.7s99%—Darkmadillo189%2-40s113.3s~120s99%—Devil Wife444%1-100s—99%—AkazaHP 1000% / ATK 1811%10s—99%BossMs. Sign100%∞900s900s100%—All Akaza Strikes! stages