Ultron is the only boss in the Avengers: Age of Ultron PvE mode, but you don’t fight him once. You take him down twice, and the second round is a serious grind if you go in blind. The good news is that his attack pool is small and predictable, so beating him fast comes down to reading a handful of moves and picking the right hero.
Quick answer: Defeat Ultron in Phase 7 (494,000 HP) and again in the final Phase 11 (2,090,000 HP). Clear his Sentry drones first, dodge his laser and unibeam attacks, and pick Iron Man to deal steady damage from the air.
Ultron’s two boss fights and HP
A full run ends only after you kill Ultron twice. He shows up as a mid-run boss and again as the finale, and his health pool jumps massively between the two encounters. Everything in between is Sentry waves.
| Encounter | Phase | Ultron HP |
|---|---|---|
| Mid-run boss | Phase 7 | 494,000 |
| Final boss | Phase 11 | 2,090,000 |
The mode has both common and hard difficulty. Only common is unlocked at the start, and clearing it once opens hard mode. His moves stay the same across both difficulties, so the tactics below carry over.
Beating Ultron in Phase 7
Ultron drops in after you scrap his Sentries in Phase 6. Despite the big HP number, this is the easier of his two fights. He only cycles through three attacks here: a unibeam, a drone summon, and a burst of multiple laser beams.
Beating Ultron in the final phase
The Phase 11 rematch is a war of attrition thanks to that 2,090,000 HP pool. He repeats most of his Phase 7 attacks but adds a few extra tricks, and this time you also have to keep Friday alive while Ultron and his Sentries try to tear her down.
Note: Protecting Friday matters as much as your own health bar in the final phase, so don’t tunnel so hard on Ultron that his drones slip past you to attack her.
Best hero to beat Ultron fast: Iron Man
Iron Man is the standout pick for shredding Ultron quickly. Ultron spends both fights floating above the ground, so a flying hero lets you stay level with him and keep dealing damage instead of chasing him around the arena. Iron Man’s flight also makes dodging incoming projectiles far easier than it is on the ground.
His reworked kit fits the mode perfectly. Micro Missile Barrage auto-locks, so you can clear the endless Sentry waves without aiming at each one, and the Invincible Pulse Cannon ultimate is built for nuking Ultron and his drones together. If you pick the perk that boosts your damage while you’re away from enemies, you can hang back at range and still burn through his health pool.
You beat the mode outright once Ultron falls in the final phase and the match completes. Clearing common difficulty for the first time hands you 200 Units and the Avengers: Age of Ultron Gallery Card, while a first-time hard clear unlocks the free Ultron “Avengers: Age of Ultron” costume and the Path to Peace MVP. If you want the hero-specific titles, finish hard difficulty as each character, including the Unmaker of Ultron title reserved for a hard clear on Iron Man.
