Pokeball

[Aight]

como troco a pokeball e coloco a do heart gold ?

exemplo> essa http://i.imgur.com/VFsKrYt.png
por essa http://i.imgur.com/9JgJJL5.png

 

[Tactician]

If you are using RPG Maker XP, just modify or add a tile space in any tileset.

If you are talking about Advance Map, you have to use Overworld Editor so as to modify the sprite of the Pokeball, which I actually think that is one of the lasts.