Campaign has 100 sequential stops across 20 districts, with three stars per stop. Knock out each boss within 30 seconds to win, then improve remaining core health to earn more stars and open district chests.
Follow the route and collect guaranteed unlocks
Each district contains five bosses. The opening route moves through Junkyard, Power Plant, Spider Factory, Scientist’s Lab and Champion’s Tower, then Sunset Foundry and Grand Coliseum. Thirteen Odyssey districts extend the full route to 100 encounters.
Stops unlock in order, while reached stops can be replayed. First-clear rewards give a direct route to new parts. This matters when you need a counter: check the next reachable unlock instead of assuming your only option is a random crate.
Know the win and star conditions
Campaign requires a knockout before the 30-second time limit. Having a larger fraction of core health when the clock expires is not enough; the boss holds on timeout. This differs from Arena’s health-fraction comparison.
A win earns the first star. Finishing with at least 35% or 70% core health reaches the higher star thresholds. District chests open at 5, 10 and 15 stars, so replaying an earlier fight with a stronger plan can produce another useful reward milestone.
Treat a wall as a diagnosis
If the boss survives the timer, identify lost attacking time, resource downtime and poor defense interactions. If your core breaks early, inspect enemy Rage, rear exposure and module survival. These are different problems and should prompt different changes.
Use the briefing and post-fight advice as a starting point, then verify the suggestion with your own available parts and timing. A favorable forecast is advice rather than a guaranteed win. Keep Scrap for upgrades that support a build capable of addressing the matchup.