If you collect them all they access secrets.
Well, for new super Mario bros, then you have to have purchased a yellow toad house with 5 star coins. Go into it and jump on the "?" box.
Beat the game and get all of the big coins in all of the worlds and do the levels
yes
If you mean big as Giant Mario like on the DS version,you can't do that on the Wii version
by paying 5 star coins
all you have to do is get all the big star coins in all levels and worlds.hope that helps(it did for me! -TinaBina789)It's hard to do so keep trying!
You can only be Big Mario when you collect a yellow mushy top. If you have an R4 chip you can get it in cheats.
I have no idea how but how do you turn small after you have defeated the big thing on the world 2 big castle?!
you have to go in world 1 and get a big and do that about 4 times
hit a ? box if youre lucky it may be a big mushroom or you can just get the game guide to find out
Keep collecting 8 coins until you get a MEGA MUSHROOM.
I think there is a misunderstander here.Google "super mario bros nes" to see what "Super Mario Bros." is actually.