Where are they?! Also ive read you can re fight bosses, is this true?

They're in all of the worlds, it'll show up on your mini map just like any other link portal would show up except they're in red ;P

 

hope I helped I know I could have been clearer.

Edited August 14, 201213 yr by WakelessDream

There are 6 special portals in every world but one 1 appears in each world at a time. And yes you can re fight bosses once you have beat the game and saved. They're found in secret portal wich are location where you originally fought the boss.

Here's a full explanation: http://kh13.com/forum/topic/38678-link-portals-faq-complete-guide-location-spoilers/

WakelessDream, you couldnt get much clearer then that Thanks.

 

Thanks guys, Ive already completed game once and saved but the data got deleted so i started over, im guessing i have to finish this one first before i can do it?

you get it if you beet the game.

and if you beat all Special portals you get a kayblade

You also get a keyblade after you beat all secret portals.