On Pokemon FireRed and Pokemon LeafGreen versions, you can get stars depending on what acheivents you make. they are as follows:
These are all the method I know of, so update my answer id you know more.
Hope This helped!
Shinin
You can defeat the Elite Four again and again (you can get stars on your trainer card for this), and you can fill up your pokedex. You can also try to catch a shiny pokemon (you have a 1 in roughly 8,200 chance of seeing one in the wild). You can explore pokemon breeding to get different pokemon to learn many unique moves.
Here's how to get five stars on your Trainer Card in Pokemon Diamond. I don't believe you have to do these things in order, but you have to do them all to get all five. Good luck: One Star - Blue Card: Beat the Pokemon League (Elite Four and Champion) once. Two Stars - Bronze Card: Beat all Pokemon Contest categories (Cute, Smart, etc.) at the Master Rank level once. Three Stars - Silver Card: Play the Underground Capture the Flag Minigame with your friends once. Four Stars - Gold Card: Capture all Pokemon in the National Pokedex. Five Stars - Black Card: Beat the Battle Tower 100 times in a row once. Hope I helped.
the stars are in the right hand order of your trainer card 1] beat the elite four 2]obtain platinum flag underground 3]get natinal pokedex 4]100 streek in battle frontier 5]win a master rank contest but you need to do these all in order
The numbers of stars on the card
(btw this is for Pokemon fire red) i think u have to beat the elite 4. catch all Pokemon. beat the battle tower.and the last one is to i forget i will add it when i remember. THIS WONT HELP YOU IF YOU ARE PLAYING THE CARD GAME. in the card game there are rare energy cards that can give you certain powers as well as a star energy. However, most people don't have more than 2 or 3 in their personal deck. Someone i know said that the star means you can use any energy but im not quite sure make sure that when you are adding cards to your deck that you have 30 BASIC Pokemon, if you only have the level up version i don't THINK you will be able to put it into play or on your bench
The three starsTo get the three stars you need to. Beat the elite fourCatch all 150 Pokemon (bulbasaur-mewtwo)Catch all 386 Pokemon (bulbasaur-rayquaza)
5 stars
The stars are located on the top of the card on Pokemon Ruby or Sapphire.
The stars on your trainer card have absolutely no use whatsoever except for showing off to others. The stars also change the color of your trainer card.
You can defeat the Elite Four again and again (you can get stars on your trainer card for this), and you can fill up your pokedex. You can also try to catch a shiny pokemon (you have a 1 in roughly 8,200 chance of seeing one in the wild). You can explore pokemon breeding to get different pokemon to learn many unique moves.
to get stars achieve the following: beat the elite 4, catch all the hoenn pokemon, catch all the johto pokemon, catch all the kanto pokemon.
The black card is your trainer card with I think 5 stars
no you have to get master balls on other firered games attach them to Pokemon and trade them on to your acountTo get more stars in fire red you can get it by doing Pokemon jump & get a 100 or 200 jumps
there on the back of your trainer card when you get all five stars you'll be more respected and nurse joy will change too
In outer space after getting 5 (five) stars on your trainer card.
you train every single Pokemon in the national dex to level 100, and then you've beat the game, congrats
when you get four or five stars, go to the Pokemon center and the lady there will say: 'Hello, welcome to the Pokemon Center. We restore your tired Pokemon to full health. Would you like to... Th-that Trainer Card! That sparkling colour! And all those stars! I've seen several trainers with Silver Trainer Cards up to now... but you're the first to top them off with that Trainer Card. Please, (Players Name), may I have the honor of healing you Pokemon?' Then you say yes. Then she will say: 'I will be pleased to take your Pokemon for a few seconds.' Then the same old stuff.