It depends on who your starting the game with.
About 12
Go to Youtube and type in 'Kingdom Hearts Birth By Sleep Playthrough."
Clear worlds one by one.
In Birth by sleep They are the little crowns you see sometimes around different worlds and you may need special abailties to get them and the stickers for the psp come with the game. hope that helps! ^.^
yeah
No PSP go can not play Kingdom Hearts Birth by Sleep because the PSP GO doesn't use a Universal Media Disc, but you can download the game (when it's released) at the PlayStation Store.
yes yes it is
yes i wii be.
Wayne Sleep's birth name is Wayne Philip Colin Sleep.
Birth by Sleep is for the PSP
Yes go to kingdomhearts.wikia.com and you can learn everything about it
no, its usb only right now