hi how do you go to world 4 and 7

dunno

You have to beat castle 3 and castle 6 as mini mario to unlock those worlds.

Hi how do i get the last coin in world 4:A please help me !

its acutlaly here on the site .
beat world two castle [the last castle] by being super tiny thts for world 4 and for world
seven , beat world five castle while being super tiny .

to un-lock worlds 4 & 7 you must be the tiny Mario to kill the bad guys in the last
castles of worlds 2 & 5 you gotta do the ground pound ( the flipping jump)!

How do you unlock world 4 on Super Mario Bros on Nintendo ds?

I can't get the mini mushroom for Mario so I do I get the the mini mushroom please help me
answer my question and so I do I unlock the worlds if I can't get the mushroom???

can't get the mini mushroom so how do I get the worlds unlocked if i can't get the
mushroom!! I don't know but will someone please help me here please give me a hand

World 4: On world 2 , the big castle,near the end there is a big spikey ball and a rope.
Swing onto the platform with 2 question mark boxes and a narrow passageway. Open the right
hand side box and get the mini mushroom. Make your way up the stairs to the 3rd star coin.
When you get to the castle doors stay as mini mario or luigi and body slam the mummy
looking thing 3 times. Then you will be led to world 4.

How do you get all the coins on world 4 level 8 ????