In Dead Rising 2 for the Xbox 360, you will need to save Katy three times with Zombrex to keep her alive. But trying to find them can be difficult, and there are actually four in total scattered about Fortune City. If you're having trouble finding them, check out this video. In it you will get all the locations for each Zombrex vial.
Want to master Microsoft Excel and take your work-from-home job prospects to the next level? Jump-start your career with our Premium A-to-Z Microsoft Excel Training Bundle from the new Gadget Hacks Shop and get lifetime access to more than 40 hours of Basic to Advanced instruction on functions, formula, tools, and more.