So I decided I wanted to get the %100 Zygarde as I have access to all of Alola. I followed the guide on http://www.serebii.net/sunmoon/zygarde.shtml to hunt all of them down, but I have one major problem: I've gone through this guide ten times, checking each area during the day and night (via the alternate world) and for some reason, I cannot find the last Zygarde cell at all! I restored an old save to make sure that Zygarde cells appear in the alternate world, and they do. I even tested to see if repels cause them to vanish, and they don't. I have no idea how this happened, but this is a progress-breaking bug that makes getting %100 Zygarde without trading, impossible. Can someone make an NTR Cheat for all Zygarde cells? This is just aggravating. Has anyone else encountered this glitch?