New Super Mario Bros. Hints

In W2 when those Lakuitas in the flying clouds are throwing those spinys at you, shott a fire ball at them and they will fall out of their cloud, then you can jump in it and fly around!

At the end of world 1-1, there is a red koopa on the platform, jump on it and carry it towards the steps.

when your at the steps, go a few steps up (make sure your holding the down button so you don't get hit by the koopa)

then, when the koopa has come out of it's shell, jump on it and press "A" straight after, then you will keep bouncing and getting 1ups. this is the quickest way to get 99 lives ;)

When fighting bowser jr., if your fire bro, when you bounce on his head he goes under his shell, well then fling away with fire balls to quickly defeat him. i did this so i know it works. (i did it on w2 though)

When you get all the giant coin things go to the mushroom place where you can buy new backrounds(it's above the first levil after you defete the last boss)and where there was an out line there will be a new backround (you might have to buy all the mushroom houses first) it will cost 20 big coin things thats the last amount if you buy all the mushroom houses and collected all the big coins. buy it then when you go out wher the number of how many big coins you have normally is it will say all spent

The mushroom houses at the start of each world (the point with an arrow at the start) differ determining on the time you get on a stage.

If you get x11, x22, x33 on the timer, a Red Mushroom house appears, which generates items.
If you get x44, x55, x66 on the timer, a Green Mushroom house appears, which is a 1up minigame.
If you get x77, x88, x99 on the timer, a Orange Mushroom house appears, which lets you gain a Mega Mushroom into your inventory, thus overriding anything in it.

If you beat a level with a time left of x11, x22, x33, x44 etc you get fireworks and the original mario level completion song will play.

When loading a profile hold left and right triggers[located on back of DS.]if you have done this right you will here luigi say his name.

Go to W2-4 or W2-5 ( I forget which one ) and at the end you should see a koopa on the staircase to the flag, then when he comes down, jump on him and then VERY QUICKLY jump on him again. And again. And again, and then just keep jumping on him until the 1-ups start showing at the top, then keep repeating until you have 99 lives.

Get to the end of the bowser's palace as fire mario
then throw fire balls to bowser jr. and then throw them to mega bowser
the mega bowser will die

and u won the game without waiting for it to jump

In castle #6 find a Koopa and u must got fire mario to throw fire balls. throw a fire ball on a Koopa and he falls on lava. that is a Double Kill.