I was looking for an abra between bill/cerulean city and found a golden caterpie. I have played firered a long time and never seen one of these before, so I captured it and when I looked at its summary, sure enough, it looked golden and had a star in its picture. What does this mean? I have never seen this before.
It means it's a shiny Pokemon. If that star you mentioned is red, then that is further proof that the mon in question is shiny