In Mega Man Zero 2, Zero falls prey to a trap set by Neo Arcadia's ruthless commander, who plans to use Zero to end the peace between reploids and humans. As Zero, you must battle through a variety of levels and challenges to make sure the commander doesn't succeed. A new weapon-customization system lets you adjust the game-level difficulty. The game new features also include a Cyber-Elf collection system, two-player mode, temporary save features, and a tutorial mission.