>>18832127>>18832139>>18832156>>18832170>not knowing that shininess in Gen 2 was determined by IV spreads>as long as a Pokemon is generated in Gen 1 with the right spread it'll be shiny>you can trade a compatible Gen 1 shiny from your Gen 2 games to a Gen 1 game and trade it back and it will still be shiny>there is a chance one of the Pokemon you caught or encountered in Gen 1 was a shiny and you never knew it.>>18832145Frapton knows what's up.
You could only find out by either knowing the IVs or just trading all of the Pokemon over and checking whether they're shiny or not.