A new battle system? and back pack?...Well if you go into your pokemon essential folder You should see a whole bunch of things, but what you need to look for is another folder that says "Graphics" When you've found that click on it then you'll see a whole bunch of other folders, but what your looking for now is a folder that says "Pictures" Click on that and you'll see a whole buch of pictures that are in the game Like the backpack, and the battle system bars, etc.