No.
It is in space
no there is not there are only nine worlds.
There are only nine.
if it's the ds one then no there is no world nine but if your talking about the wii the yes you unlock it when you finish bowsers giant castle in world
There are nine worlds in New Super Mario Bros. Wii. When you get all of the Star Coins in World One you unlock World Nine Level One and so on. World Nine is like Rainbow Road on Mario Kart.
no there is not because first you play worlds 1-8 then world nine comes which u then in every world and in every level you have to get every big coin or if your talkin bout the super bros on Nintendo ds then there is only 8 worlds.
nope i finished it..the only worlds they have is on map
beat and unlock all the other levels. my mom is the Mario master
HELLO There is NO world 9.(btw I checked another 'world nine' question and there IS!! On the wii!)
World 7 is unlocked when you complete World 6 and so on.
Nothing, the only thing you can do with the star coin it's to buy the video in Peach Castle.
no only world 9. unlock it by A: beat worlds 1-8 B: get every star coin of at least one world to unlock the first level of world nine and so on. no world ten, sorry.