how do you unlock world 4 on super mario bros on Nintendo Ds?

house above the cannon

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Lots of Cheats, including Secret Exits
Toadhouse

Yellow Mushroom with Red spots- Mega Mushroom Toadhouse
Red Mushroom with White spots- Koopashell/Minimushroom/Fireflower/Supermushroom toadhouse
Green mushroom with white Spots- Lives toadhouse

Lives

Once you defeat the final boss on W8, and you use a Toadhouse, it stays! Keep using a
Lives toadhouse until you have 99 lives

Secret exits and Secret Areas/

Some levels have secret exits. You know this if the flag is red. You'll unlock something:

World 1 Level 2:

On the second tilting seesaw, stand on the left. When the right hand side is up high,
quickly run up and jump on the ceiling. A green pipe further behind the other is located,
along with Star Coin 3. Collect, then enter for a secret exit.

World 1 Bowser Jr. Tower:

Snag a Blue Koopa Shell first. Get to the first pipe, then you'll boost up. Go in the door
you see. You should be in a room with sliding blocks. Get the Star Coin. In a gap on the
right hand side wall is another room. Find the invisible bricks (and life mushroom) and
use your Shell to break the other bricks. (the yellow pipe isn't a secret pipe

World 6 Sandy Level (cant remember the level number)

At one of the cliffs, you'll see a sandy fall. 2 Lakitu (cloud guy) will throw spiky stuff
at you. Sink into the fall for a secret room.A star coin is located here

World 4 level one:

At a row of five briks, with the end ones being ? blocks, get on top of them (by swinging
on the vines or by jumping the spiders) Above the middle brick is an invisible block with
a vine. Up you go. (The brick might be at normal mario height, so if you are super, you
may have to crouch jump to get it)

World 3 Ghost House:

At the end where you press a switch to make a door appear, ignore the door. You want the
one all the way back over the steps. It's next to a different door from earlier. The one
you want is on the left

World 4 Ghost house:

Grasp a mini mushroom. At the end is a large space going upward. As normal, you usually
can't wal kick high enough; but as Mini you can wallkick to the top! The secret exit is
through the door

World 5 Ghost House:

At the steep steps, there is three blocks. Above them is three more invisible blocks.
Above that is an invisible brick; with a vine. You must crouch jump if you are super.
Climb the vine.

World 7 Ghost House:

Through the bottom right door are both the normal and Secret exits. In the Hands room, the
Hands point to an invisible moving brick. Its got a switch. Find, and press. iN the above
room, to the right is exit. To the left is secret exit. Go left, until you see a block
which gives a little shine. It has a vine. Climb.

thats all for now

By: Lenard

beat last won in world 8 being super mini

be donkey kong by beting w9

I've read on some websites that you have to be Mini-Mario (I think it's the small Mario,
not the blue-mushroom dude)

beat world 2 final castle with the puny mushroom

when selecting file, hold down R and L

how to get to world 4 and7 on mario nintendo ds

My thoughts are that You have to be Mini-Mario to get to World 4 and World 7. I dont know
how yet though. The cannons dont help you at all. So what if im a girl. Mario is one
rockin little dude!

I know you have to be mini mario but he doesn't have any effect on the monster? Do I just
have to keep jumping on him? It's not working.

you have to beat the w 2 and 5 boss

if it doesnt work ground pound on there heads

can any1 please tell me how to get to world 4 and 7 on super mario 3 nitendo ds

Shut up. and listen just follow these rules get tiny tot (small blue mushroom) and defete
the last castule in w8.

dont know