Kingdom Hearts II kh fm2 crown question

i have collected every single crown in critical mode i have completed every puzzle in jimminies jornel and have equipped the crown but he is not wearing it is there anyone who can tell me what to do

 

That's not the crown Sora wears.

Sora wears a crown for beating any one of the following:

- Beat all Data fights
- Beat the ES
- Beat all the XIII Mushrooms

Beat one of them: The crown is bronze
Beat two of them: The crown is upgraded to silver
Beat three of them: The crown is upgraded to gold.

 

thank you very much for clearing that up for me

 

And what happens, with bronze, silver, and gold??