What you need to do is defeat Bowser. To get the levels you need all the star coins from the world 1-8
there is none
no there is not
No.
finish the 6th world
No.
There is a Super Mario Brothers for both the Nintendo Wii and Nintendo Wii U
No only on wii.
only on nintendo wii not ds
because that is a bonus
There are only nine.
no there is not there are only nine worlds.
kill the boss
yes