This complete boss weakness guide will show all bosses (including sub-bosses) in Mega Man Zero/ZX Legacy Collection
Guide to Boss Weaknesses Guide
As stated, this guide will showcase the weaknesses of all bosses in Mega Man Zero 1-4. I’ll do a separate guide for the bosses in ZX and ZX Advent, as well as a guide for collectibles for both games later.
A thing to note is, I am not as familiar with the Zero and ZX games, as I am with Classic and X games, so expect a few, other than grammatical, mistakes here and there. Apologies in advance!
I’ve also made guides for Classic and X Games, all of which you can check through my profile.
Hope this guide will be helpful to you all!
Rock Man Zero 1/Mega Man Zero 1: Boss Weaknesses
NOTE: Since you can choose the order of the missions in any way that you’d want to, there won’t be any boss/mission order per se (at least until I replay the game enough times to notice and make one); I’ll just list the bosses + sub-bosses, the missions in which they appear, their weaknesses and what they give.
Bosses
| Boss | Mission/Level | Rec. Weapon | E-Chip Weakness | Gives You |
| Golem | Intro Stage (Underground Laboratory) | Z-Saber (In the head) | N/A | Z-Saber |
| Aztec Falcon | (Rescue Reploids from) Disposal Center | Z-Buster | Ice Chip | Thunder Chip |
| Pantheon Core/Train Engine Core | Destroy Train(Subway) | Z-Saber | Thunder Chip | Cyber Elf |
| Maha Ganeshariff | Retrieve Data (Underground Laboratory) | Z-Saber | Thunder Chip | Cyber Elf + Triple Rod |
| Guard Orotic | Occupy Factory (Subway) | Z-Saber/Z-Buster | N/A | Flame Chip |
| Anubis Necromancess III | Find Shuttle (Desert) | Z-Saber | Flame Chip | Cyber-Elf |
| Blizzard Staggroff | Find Hidden Base (Desert) | Z-Saber | Flame Chip | Ice Chip |
| Sage Harpuia | Rescue Colbor (Subway) | Z-Saber | Ice Chip | Cyber Elf |
| Fighting Fefnir | Duel in Desert (Desert) | Z-Saber | Thunder Chip | Cyber Elf |
| Hidden Phantom | Protect Factory (Subway) | Z-Saber | N/A | Cyber Elf |
| Fairy Leviathan | Stop the Hacking (Desert) | Z-Saber | Flame Chip | Cyber Elf |
| Hanumachine | Defend The Base – 2/Resistance Base Perseverance | Z-Saber | Thunder Chip | Cyber Elf |
| Asura Basura | Neo Arcadia Shrine | Z-Buster | Thunder Chip | N/A |
| Herculious Anchortus | Neo Arcadia Shrine | Z-Saber | Ice Chip | Cyber Elf |
| Rainbow Devil | Neo Arcadia Tower | Z-Saber | N/A | Cyber Elf |
| Copy X (1st Phase) | Neo Arcadia Core | Z-Saber | Varies | N/A |
| Copy X (2nd Phase) | Neo Arcadia Core | Z-Saber | Ice Chip | Cyber Elf |
Not sure, if they can be considered Sub-Bosses. The game treats them as bosses, but they don’t have health bars, so, I’ll treat them as sub-bosses.
Sub-Bosses
| Boss | Mission/Level | Rec. Weapon | Weak Against |
| Hittite Hottaid | Giant Mechaniloid Invasion | Z-Buster | N/A |
| Pantheon Ace | Neo Arcadia Shrine | Z-Saber | N/A |
The recommended weapon doesn’t necessarily mean that it’s the best weapon for that boss/sub-boss. You can beat Fairy Leviathan, for example, with Z-Buster. Z-Saber is a better option though, as it can slIce through her and her attacks rather quickly.
Rock Man Zero 2/Mega Man Zero 2: Boss Weaknesses
From what I recall, the same thing about order applies to Zero 2(Have to replay Zero 2 to see if it’s true), so, again: I’ll just list the bosses + sub-bosses, the missions in which they appear, their weaknesses and what they give.
Bosses
| Boss | Mission/Level | E-Chip Weakness | Gives You |
| Mecha Scorpia | Intro Stage (Sand Wilderness) | N/A | N/A |
| Hyleg Ourobockle | Rescue Reploids (Forest of Dysis) | N/A | Laser Shot (EX Skill) |
| Poler Kamrous | Destroy Computer (Computer Zone) | Flame Chip | Ice Chip + Triple Shot (EX Skill) |
| Panter Flauclaws | Rob Goods (Supply Train) | Ice Chip | Thunder Chip + Spark Shot (EX Skill) |
| Phoenix Magnion | Destroy Power Reactors (Power Room) | Thunder Chip | Flame Chip + Tenshouzan (EX Skill) |
| Golems | Residential Area | Golem E – Ice; Golem F – Thunder; Golem I – Flame | N/A |
| Kuwagust Anchus | N/A | Ice Chip | Sengatotsu (EX Skill) |
| Burble Hekelot | Forest of Notus | N/A | Energy Chain (EX Skill) |
| Sage Harpuia | Crystal Cave | Ice Chip | Kougenjin (EX Skill) |
| Fighting Fefnir | Shuttle Factory | Thunder Chip | Blast Shot (EX Skill) |
| Fairy Leviathan | Roof of Computer Zone | Flame Chip | Sharp Edge (EX Skill) |
| Rainbow Devil MK2 | Neo Arcadia Temple | N/A | Filter Shield (EX Skill) |
| Sage Harpuia MK2 | Temple of Wind | Ice Chip | N/A |
| Fighting Fefnir MK2 | Temple of Flame | Thunder Chip | N/A |
| Fairy Leviathan MK2 | Temple of Ice | Flame Chip | N/A |
| Kuwagust Anchus MK2 | Teleporting Hatches | Ice Chip | N/A |
| Elpizo (1st Phase) | Yggdrasil | N/A | N/A |
| Elpizo (2nd Phase) | Yggdrasil | N/A | N/A |
NOTE: EX Skills are unlocked by earning an A or S Rank in the stage.
Rock Man Zero 3/Mega Man Zero 3: Boss Weaknesses(WIP)
Rock Man Zero 4/Mega Man Zero 4: Boss Weaknesses(WIP)
by shmoooey
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