After Mario obtain 10 stars, Mario will see sunlight shinning
into the main lobby of the castle. Look up at it and Mario will enter the
red ! stage. Press the
big red ! button and all the transparent red ! boxes
in the game will turn into real. Mario can fly after performing triple
jump or being shot from any cannon
with this cap. Mario can also collect 8 red coins in
the red ! stage. This is one of the 15 secret stars hidden in the castle.
GREEN !
The way lead to the green ! stage is in stage 6. Go to
the lake in stage 6 and use the swimming creature to jump over to some
extended red grid with a
door behind. This door lead to a pool of metallic liquid
which is the entrance to green ! stage.
Press the big green ! button to activate all green !
boxes. When Mario is wearing this cap, he will neither hurt by enemy nor
by fire, and also can walk
under water. Mario can also collect 8 red coins here
to get a star, which is one of the 15 secret stars in the castle.
BLUE!
In the basement of the castle, go through the door next
to the door to stage 6. There is an underwater tunnel which leads to two
pillars just above water
level. Pound on them and the water in the moat surrounding
the castle will drain away. Walk into the hole before the waterfall to
the blue ! stage. Press the
blue ! button to turn all blue ! boxes to real. When
Mario is wearing this cap, he is transparent and will not be injured by
enemy and even can walk through
net, grid, picture, etc. Mario can also collect 8 red
coins here. This star is one of the 15 secret stars in the castle.