Not only do you need to press select to turn this code on, but you also need to make sure the XXX in the code below is changed out for a pokemon code.
Whatever the case, this code will get you what you’re looking for. Wish you could find a Tepig in the wild? Struggling to find the roaming legendaries? Maybe you’re just looking to catch a very specific team for a playthrough. This code allows you to set your encounters to whatever pokemon you want. Press select to activate this code and fill your inventory with 900 of every item. This particular code fills the ‘item’ pouch of your bag which, in Pokémon Black Version, includes pokeballs, mail, and all sorts of held items. While the previous two codes give you specific items, the next few cheats are focused on filling an entire section of your inventory.