you get it right before you go through the big doors
You have to be Mini-Mario (tiny blue mushroom) as you fight the boss in world 2 (for world 4) and world 5 (for world 7)
On world 5 you have to finish the castle at the end on tiny mario... You know the one you get with the tiny blue mushroom? It's the same to get world 4 but you have to do it from world 2...
you have to beat boss world 2 as mini for world 4 you have to beat boss world 5 as mini for world 7
If you want to go to W4, complete the whole World 2 caste using mini mushroom. If you want to go to World 7, you have to complete the whole World 5 castle using mini mushroom.
pass world 5 while being the mini mushroom, and you get to world 7
you need to have a tiny mushroom and get to the tiny pipe on world 7-4
Get the small mushroom, then when you get at the end of world 5 (big castle) you use the mushroom to beat the big guy and once you finish you will go into a little whole and change the sign to world 7. GOOD LUCK!!!
It's called the Mini Mushroom.
A mini mushroom.
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 have to beat world 5 boss with a tiny mushroom in your storage and when you deliver the final blow get the tiny mushroom
You have to beat world 5 while having the mini mushroom power up.