Run behind it and attack by punching or diving several times.
You defeat the boo by sneaking up on him by the back and hit him.
ITS HARD KINDA BUT I BEAT HIM RULES LISTEN : 1:get in the cage. 2:go in the tiny room. 3 : don't get by fire. 4:then attack
Hit big boo 2 times with Mario and in the mirror with luigi hit him only once.Good luck!
you cant unless you a a gameshark with the code
Punch him in the back 3 times.
There is no boo or Koopa Kid in Mario Strikers.
Yes Mario can become a boo in the game super Mario galaxy. When you get a boo mushroom.
you punch him until he explodes
Are you talking about Super Mario 64 ds I have got to know
Super Mario 64 DS Unlockable: LuigiAfter unlocking the red ! boxes, go to the castle courtyard. Punch the giant boo with the cage inside of him to enter Big Boo's Haunt. Obtain the first star by defeating all the Boos to get the staircase. In the second goal, as Mario, go up the stars and into the room with the single bookshelf. Use the fire flower to float up to the room above, where you'll find a Luigi painting. Jump through the painting and defeat Big Boo to get Luigi's key.
There's a very large 'Big Boo' on World 2-Ghosthouse, of New Super Mario Bros 2.
kill all the other boos by ground pounding on their heads