Hades 2 Boss Guide: How to Beat Every Major Boss (Attack Patterns, Counters, Best Boons)
The bosses in Hades 2 are where Supergiant really flexed their design muscles. Every major fight has multiple phases, unique gimmicks, and at least one attack that feels completely unfair until you learn the trick. Here is how to beat each one, based on way too many deaths.
Hecate (Erebus, biome 1 boss)
Your first wall. Hecate has three distinct attack patterns that she cycles through, and she summons spectral clones halfway through the fight.
Phase one: she teleports around the arena and fires homing green projectiles. These track you for about two seconds and then accelerate. The trick is to sprint perpendicular to them, not away. Running directly away gets you hit. Running sideways makes them miss.
She also has a melee combo where she sweeps her staff in a wide arc three times, then slams the ground for an AoE shockwave. The shockwave is the only dangerous part of this combo, the staff sweeps do chip damage but the slam does about a third of your health bar. Dash through her during the third sweep (not away from her) and you will end up behind her when the slam comes down.
Phase two (at 50 percent health): Hecate adds her clones. They mimic her projectile pattern, but the clones' projectiles are smaller and slightly slower. Focus the real Hecate, the clones die when she does. If you are having trouble telling which one is real, look for the one that has a glowing green aura. That is always the original.
Best boons for this fight: Demeter's Frost on your cast, because frozen Hecate cannot teleport and her projectiles are easier to dodge when she is stationary. Hestia's Scorch on your attack if you have a fast weapon. The fight rewards aggression, Hecate has very little health relative to later bosses, so bursting her down quickly skips the more dangerous clone phase.
Scylla and the Sirens (Oceanus, biome 2 boss)
This is three enemies at once, each with their own health bar and attack patterns. Scylla is the main boss, flanked by two sirens (Roxy and Jetty).
The sirens sing in harmony to create arena-wide attacks. Roxy does a horizontal shockwave that covers the entire room floor, you have to dash over it. Jetty does a vertical beam that sweeps left to right. When both are alive, they alternate these attacks, forcing you to weave between floor hazards while dodging Scylla's claw swipes.
Kill one siren first. I prefer Roxy because the floor shockwave is harder to avoid than the beam. Once one siren is down, the remaining one sings solo and their attacks become more frequent but less varied. Kill the second siren, then Scylla herself is straightforward, she has a three-hit claw combo with long recovery windows between each string.
The arena occasionally floods, which slows your movement but also slows Scylla's attacks. This is actually an advantage if you have a ranged weapon, stand on a high platform (there are always two elevated spots in the room) and fire down.
Best Keepsake: Cerberus's Collar (extra health). This fight does a lot of chip damage that is hard to avoid entirely, so the health buffer matters more than damage output.
Cerberus (Mourning Fields, biome 3 boss)
Yes, the good boy from the Crossroads. No, he is not your friend in this fight. Cerberus is corrupted by Chronos and attacks you, and it is genuinely unsettling if you have been petting him between runs.
Cerberus has three heads and each head fires a different attack: the left head breathes fire in a cone, the center head lunges forward for a bite, and the right head slams the ground to create a shockwave. The heads attack independently, meaning you can be dodging fire while a shockwave is traveling across the floor.
The strategy is to focus one head at a time. I start with the left (fire) head because the fire cone covers the most area and restricts your movement the most. Each head has its own health bar, and when a head is destroyed, Cerberus staggers and takes bonus damage for a few seconds.
His desperation attack (when one head remains) is a triple ground-pound that sends three increasingly large shockwaves across the entire arena. Dash through each one, not over, the invincibility frames on your dash are the only reason you survive this.
Demeter's Frost is strong here for the same reason it works on Hecate: frozen Cerberus means frozen heads, which means no attacks happening. If you can chain a freeze into a full damage burst on one head, you can sometimes destroy it before Cerberus recovers.
Chronos (Tartarus, biome 4 boss, final Underworld boss)
The Titan of Time himself. This fight is legitimately hard. Chronos has two full health bars and three distinct phases.
Phase one: Chronos floats in the center of the arena and attacks with time magic. He fires clocks that travel in a line and explode after a delay. He also does a 'time stop' ability where a bubble expands from his position, if you are caught in it, you are frozen for two seconds while he damages you. The bubble is telegraphed by a glowing ring on the floor. Sprint away the moment you see it.
His most dangerous phase one attack is the scythe sweep. He teleports to one side of the arena and drags his scythe across the screen in a wide arc. This hits the entire room and does massive damage. The only way to avoid it is to dash through Chronos himself, your i-frames will carry you through the scythe. Dodging away from it just gets you hit.
Phase two (first health bar depleted): Chronos summons hourglasses around the arena that periodically flip and reverse time. When time reverses, your position rewinds by about two seconds, which can yank you back into attacks you already dodged. Destroy the hourglasses immediately, they are fragile and break in 2-3 hits. If you ignore them, you will die to a rewound dodge.
Phase three (second health bar, final stretch): Chronos combines all previous attacks and adds a new one where he spawns duplicates of himself that charge at you. The duplicates die in one hit but they come from all directions. Use your Hex here, Lunar Ray or Moonlit Veil works well for clearing them.
Best build for this fight: the Black Coat if you have it (shield absorbs his big hits). Otherwise, anything with Demeter's Frost for the control and Hestia's Scorch for damage over time while you focus on dodging. Speed does not matter here, survival does. The fight is a marathon.
Surface route bosses (brief mention)
The Surface route bosses hit differently. Ephyra ends with the Chimera, a multi-part beast that switches between fire, lightning, and poison attacks. Thessaly ends with the Storm Giant who has environmental insta-kill hazards (falling off the mountain). Mount Olympus ends with a confrontation that I will not spoil, but expect to use the Black Coat or a very good dodge build.
Honestly, I find the Surface bosses harder than the Underworld ones, primarily because the Surface rooms leave you more drained by the time you reach the boss. The Underworld gives you more fountain rooms and healing opportunities. On the Surface, if you get bad boon luck, you can reach the boss with half health and no death defiance left.
General boss tip that applies to every fight: always take the Chaos gate if you see it before a boss biome. The temporary curses hurt, but the boss-killing blessings (bonus damage, damage resistance, extra casts) can trivialize a fight that would otherwise take you five attempts.