Just a reminder that providing specifics on, sharing links to, or naming websites where ROMs can be accessed is against the rules. If your post has any of this information it will be removed.
Ever thought it'd be cool to have your art, writing, or challenge runs featured on PokéCommunity? Click here for info - we'd love to spotlight your work!
Welcome to PokéCommunity! Register now and join one of the best fan communities on the 'net to talk Pokémon and more! We are not affiliated with The Pokémon Company or Nintendo.
you can meke pokemon with trainer front sprites and put them into the dex. Don't use them in battle or it will crash. I think you have to add only front sprite, (pokedex in the "form" page shows the front and the back sprite of the pokemon, so if you don't want to make a backsprite you can just put an empty image) and write the species data in pokemon.txt in PBS. Since i'm not good in scripting this is the only way i can suggest you.
PS. Sorry if my english isn't very good, but I'm italian.