100 years, MegaMan X defeated the Mavericks, and created a new utopia for both humans and Reploids: Neo Arcadia. However, one day, Neo Arcadia became a nightmare for Reploids, and escaped to an abandoned city with a human scientist named Ciel. Ciel knew that the days of the innocent reploids were numbered. However, there was a legend about a powerful Reploid hidden in a place near Neo Arcadia. What she found was the legendary Reploid, Zero, who fought alongside X during the Maverick wars. Zero helped Ciel and eventually met the mastermind, Omega X, the "perfect" copy of the original X.
A year after Omega X's defeat, Zero never returned to the Resistance Base. He wandered in the wilderness, thinking about the battles he fought, and how they had lost meaning to him. Zero began searching for Ciel, but was attacked by a bunch of Neo Arcadian soldiers. Zero barely managed to defeat them, but was too weak to carry on. However, it wasn't long before a Resistance soldier had found him, took him to the base and had him repaired.
Now Zero faces an even bigger threat from Neo Arcadia, are you up to the challenge?
Buster Gun- Zero's basic weapon. Great for long distance attacks.
Z-Saber- Zero's most powerful weapon. Most of the time, this is the best weapon to use in boss fights.
(In order to obtain the two weapons listed below, you must beat the Scorpion Mechaniloid, then talk to Cerveau)
Chain Rod- Used to grapple on ceilings and to grab items.
Shield Boomerang- Crikey! You can deflect bullets and throw it to cut your enemies into pieces!
Scorpion Mechaniloid- Just shoot or slash it. When it throws it's pincer, jump over it, or desroy with with your saber.
Phoenix Magnion- The Lightning Chip is needed to defeat him. First, shoot at him, then switch to your saber and do a charged slash on him, or, just charge the gun and shoot him. Beware: he's a master of illusion! Your reward for beating him is the Fire Chip.
Panter Flauclaws- For best results, use the Ice Chip. There are two trains, he'll be on one of them, do a few slashes and boomerang throws, then he'll jump onto the other train. Just charge your Saber then slash (with the Ice Chip equipped).
For beating him, you'll get the Thunder Chip.
Poler Kamrus- She's a pushover, especially if you have the Fire Chip. Any weapon with the Fire Chip equipped is very effective.
Hyleg Ourobockle- Don't bother equipping any Chips when fighting him. The battle fround is a big snake, so be careful where you step because the snake will move in all kinds of crazy directions. The Z-Saber is the best choice for this fight.
Kuwagust Anchus- Ice Chip, Z-Saber or Buster Gun, and any EX. Skill involving ice is good on him.
Burble Hekelot- First, charge the Z-Saber with the Fire Chip equipped, jump, then release the button to burn his hiding place. Next, un-equip the Fire Chip and attack him with non elemental attacks. Kill his caterpillars; if you don't, he'll eat one and his size and defense will increase!
Harpuia- His skills have greatly improved since the previous game, however, if you have the Ice Chip equipped and some good healing Elves and/or Sub Tanks, you can beat him.
Leviathan- She's still a weakling. Just have your Saber and Fire Chip ready.
Fefnir- This guy is TOUGH! But fear not, the Lightning Chip is his weakness. A word of advice, if you see him stick his two guns in the ground, get away, and try to dodge the fire stalagmites!
Jell-O Demon-