Thanks so much, Lightseeker. Do I just pick them up from the PC or are they in place of two of the starters? Forgive me if the question is silly, I've just never done a custom playthrough before.
Do we have to do a monorun if that isn't what we want? Attached is my game file. I would please like a shiny Onix and shiny Bulbasaur. The Onix I'd like to have pretty good IV/EV (whatever they're called) and a Jolly nature. You can do with the Bulbasaur whatever you want.
Game.rxdata