Boss Lab Campaign guide: 100 bosses, unlocks and stars
Understand the 20-district Boss Lab Campaign, sequential unlocks, first-clear rewards, star goals and the 30-second knockout rule.
Campaign guides
From your first Junkyard fight to the Odyssey. Learn unlocks, stars and how to get past a stubborn boss.
How to earn three stars and district chests in Boss Lab
Use the Campaign core-health thresholds to plan three-star replays and unlock chests at 5, 10 and 15 district stars.
Stuck on a Boss Lab boss? A practical troubleshooting guide
Diagnose a Campaign wall by separating timeout, damage, range, heat and missing-counter problems before upgrading.
Campaign energy in Boss Lab: recovery and Arena
Understand the Campaign entry-energy tank, recovery, level-up refills and how it differs from combat battery power.