(posted: 6/30/2007 10:57:33 AM) Answer Courtesy of Brain2you: http://guides.ign.com/guides/482090/page_6.html
Stage 2-4: Bigger Boo's
Remember those bum biting boo buddies?! Well, the boos are
ghosts that take some brains to beat. When you're facing boos, they'll blush
when you face them but will chase after you when you're back is turned. Knock'em
out by ricocheting eggs off wall.
You'll encounter some Boos very early in the stage. Hit the ! switch and make
a dash to the right while picking up the FLOWER PETAL over the lava pit. By the
time you enter the door, you should have four red coins and one flower
When you enter the new area, ignore everything and head right into another
set of doors. In here, you'll battle two Big Boos. Throw the eggs against the
wall so they'll bounce off and hit the Boos. You'll pick up your second FLOWER
PETAL after you whacked them both. Exit the door and before you hit the ? Cloud
to form a staircase, grab the 3 RED COINS with an egg. Climb the stairs and
follow the only accessible path until you reach another ? Cloud. Drop down and
hit the ! Switch. Drop down another level and head right to grab some coins as
well as popping another ? Cloud for a key. Head back left when you have it. When
you climb back up the stairs, head left toward the egg. You'll see a crate, but
you can't do anything about it right now. Keep jumping up until you ride a
yellow platform to grab some RED COINS. At the end of the ride, head left to
enter the locked door.
As soon as you enter the door, aim up and grab the RED COINS with your eggs.
BE sure to grab all the RED COINS in this room and then make yourself to the
upper right corner for a FLOWER PETAL. Head left after that to a pipe.
Smash the crate for some stars and then head right. Make your way to the
middle ring. Pick up the fourth FLOWER PETAL and then carefully jump over the
boogy man ghosts. They're invincible so jump over them when they're retracted.
Hit the ! Switch and go to the other side.
After you exit the pipe, jump to the left for a secret ? Cloud holding a
1-Up. When you venture to the right, avoid all the fire spinning traps while
you're picking up RED COINS. When you've reached the lava pit, jump onto the log
and watch out for Boos.
The next area requires some fancy manuevering if you choose not to whack the
Boos. The last of the RED COINS are in this room. Before you exit this door,
about 8-9 stones on the left from the exit door has a breakable entry on the
ceiling. Smash it so you can enter the door you saw in the beginning of this
area. When you enter this area, shoot the blue Boo balloon three times until it
drops a ! Switch. Coins will be everywhere, but the main reason why you're here
is for the last FLOWER PETAL in the far left upper corner of this room. Beware
of the Boo balloons--they are enemies.
In the room before the boss, you'll come across a middle ring. Cross it and
then carefully jump onto the swiveling wooden beams.
The Boo is also pretty easy. The thing you should worry about are the pesky
bats. When you hit the Bigger Boo, he will become bigger. Keep inflating him
about four or so times until he goes BOOM!