Collaboration Gauntlets · Stage 9MISSION 9Data updated: 2026-07-24150Energy Cost13,395XP Reward1,020,000Enemy Base HP4,500Stage Length15Max Enemies10.2Difficulty Build a lineup for this stage Test your team vs this stageStage rewards100% — XP ×1,000,000 · first clear · Treasure RadarEnemy spawns (8)EnemyStrengthCountFirst SpawnRespawnBase HP TriggerNotesMARS PEOPLE (Enemy)2700%∞3.3s33.3s~40s100%—MARS PEOPLE (Enemy)2700%34.7s6.7s~13.3s100%—MARCO (Enemy)2700%∞6.7s40s~60s100%—SV-001 (Enemy)2688%113.3s—100%—HUGE HERMIT (Enemy)1612%153.3s—100%—DONALD MORDEN (Enemy)271%166.7s—100%—SV-001 (Enemy)2688%30s3.3s99%—SOL DAE ROKKER (Enemy)1074%120s—100%BossAll METAL SLUG STRIKES! stages