get mario as metal mario

To kill a ghost (Boo), face away from it, then just as it is about to hit you, jump and do a ground pound. You will get a blue coin for your efforts.You could also try to run behind it and punch it, but you are likely to run by accident and take damage.

you cant be metal when u r mario only WARIO!

When it's near press b & r

ground pound it

...

Here arechanges between N64 and DS versions in Hazy Maze Cave.

Mission 3, Course 6 (N64): Metal Mario can Walk.
Mission 3, Course 6 (NDS): Metal Wario can Walk.

There I said it.

You can kill a boo in different ways.

1) Press R+B to do a backward summersult and R to perform a ground pound. Rank: Easy

2) Press B to jump and R to peform a ground pound. Rank: Easy

3) Run then Press B+A to do a slide attack when the boo is solid. Rank: Midium

4) Press A to punch it. Rank: Midium

5) Press R+A+B to perform a dance attack. Rank: Hard

6) Be Luigi and press R+B+R to perform a backward summersult then he will perform a
SUPER-spin, while he is spinning, keep spinning until you spin onto the boo. Rank: Easy

7) Be Wario and press A+B to perform a ground pound or press R+B+R to peform a backward
summersult+ground pound at the edge or very close to the boo, the cloud is the killing
part. Rank: Easy-Midium

8) Be Wario and get the power flower, turn to metal and run into the boo or stay still
until the boo bumps into you. Rank: Easy

Hope this helps.:)

You cant "kill" ghosts, but can make then disappear! ("ghosts don't die.. You think you
can make it out alive)
You can either, use metal wario, punch it, or ground pound it.