How do you become mini mario in world 5?

Answer 1

Press B when the hammer is equiped and when you're able to make Luigi use the hammer. Mini Mario can go though small passages. You can't use Luigi when Mini Mario is in small passages. Mini Mario can still jump and use the hammer when he's in small passages.

rougebankgirl

Answer 2

You have to get a special shroom in Super Mario Bros DS.

You have to earn a mini shroom in NSMB Wii

In Mario Party you have to buy the shroom.

Answer 3

It depends on the game. Assuming your playing New Super Mario Bros you can find mega mushrooms in normal question blocks scattered across the levels.