this is if you mean new Super Mario bros you get a mini mushroom and do the boss with the mini mushroom in world 2 and 5
you beat the world 5 castle being tiny.
Open a Super Mario World ROM with it. You can now edit the levels!
it depends what world your in. go to the mushroom houses then open one box. it will sometime get a 50% chance of getting one.
World 7 is unlocked when you complete World 6 and so on.
For world 4 complete world 2 castle defeat the white thing being mini Mario and for world 7 do the same except on world 5 castle!
Download this: http://sharecash.org/download.php?file=365829 And then read this: http://www.fantasyanime.com/emuhelp/emuhelp_zsnes.htm
you have to get all stars in the game and beat bowser in world 6 (again)
You will need to collect all 150 stars and the cannon in front of the castle should open and then all you have to do is go in the cannon and blast off.
I don't really understand the question.
with stars you idiot
4 jumps and throw 56 fire balls in world 2-1
sorry to say this but you have to open all the mushroom houses which costs 5 coin and by the time you do that you have to get the rest of the coin is the game just to use the friggn thing.