With this, you are able to edit your pokemon party, also the mystery egg. There is another mod, that is a little bit harder to use. You will be fine with this.
You can change it here
East from the gym, north from the "taxi" guy, west from the hotel. ONLY before neo gearen city. So, if you finished ep.11, its kinda not possible to change it without mods etc.
Thanks, got all 8 badged, ofc the miltank was the only problem. But the reward was so disappointing, since i dont need any AP
Just look, i already have all of the HM replacments.
Someone was talking about virtual badges or something like that, and about johto gym leaders (they are the same i guess?). Could someone tell me more about this?
You can. In rejuvenation hidden ability is just a normal ability. Even wild pokemons can have them. Thats why Torchic is one of (or THE) best starters.