You can't be Yoshi to defeat him unless you are in disguise. Pick King Bob-omb up from behind with the A button and then throw him (not off the cliff). You have to throw him 3 times to defeat. 

Stand Tall on the Four Pillars Star -- You defeat the hand boss by punching the eye on the fist. This is hard because it blinks. And once you get to one he goes back, you need to dodge him, but he doesn't blink so you need to punch his eye when he does that. 

How you defeat Bowser, you need to grab him by his tail (press A) then spin him around on the touch screen and fling him into the spike bombs. If you don't he'll come back up. The first Bowser you do, you need to do it once, the second Bowser you need to do it once, the final Bowser you need to do it three times. 

You need to press A to punch King Boo from behind or from the side. If you try to punch him from the front he turns invisible and if you try to run through him he appears again and you get damaged. What level it is - the level name of it is Big Boo's Haunt. How to get in is you need to defeat a big boo in the courtyard and then it gives you a little thing and you jump in and it takes you to Big Boo's Haunt. You need to go through a certain door - through a library - if you're Wario you can backflip and get to it. If you are Mario you can P balloon or back flip or front flip. 

You need to be Wario then you need to punch open the black brick and drain the moat. Then you need to fall down a black hole and you get into the level. The black brick is outside of Peach's Castle. You need to go into the basement and pound two pillars and then when you go outside the moat is drained. The special thing about this level is you need to unlock Luigi and then Wario and you can into this level.

You need to go outside, not into the courtyard, actual outside. Then you need to unlock a cannon by getting all the stars in the whole entire game. This is how many, 150 stars. In Super Mario 64 on Nintendo 64 there's 120. On DS it's 150. Then you need to go in the cannon, aim on top of Peach's Castle, not too high and not very low. Then you're on top of Peach's Castle. There is a fence with a pillar and around the pillar is 3 one ups and also a question mark. 

You need to unlock Luigi and turn wispy and unlock the upper floor. In the key door. And then you run up a staircase, go into a room with a little star on it with a carpet then you need to collect a flower to become wispy and then you phase through glass as wispy Luigi and then you jump into the Wario painting. You don't have to be wispy to jump through the painting, only to get through the glass. And there's an ice boss in there and you need to ground pound or kick or punch. Punching is kind of hard with that guy, he's a big meany pants. 

How you unlock Mario, you need to get 8 stars and then you unlock the door to Mario, then you need to jump through his painting. And then you're in his world, then you need to jump onto a vine, then you need to climb up it and then you need to go on a bridge with goombas then go past the piranha plant or defeat it. Then you go into a hole, then you get to a goomboss, and if you are Yoshi you need to throw eggs at him 3 times then he gets defeated and he gets really mad and really fast and then he gives you the key to Mario's door. And how to do it as Luigi, Wario, or Mario is you just need to punch goombas at him.

In Super Mario 64 how you catch a bunny is either by holding it, diving and holding it (you press B to catch it or A). If it's a new one it gives you a key, if it's an old one it doesn't. The keys are kind of useless because they just give you a key to Princess Toadstool's secret drawer. Princess Toadstool is actually Peach. One of them is really good because it gives you a key to inside Peach's castle. 

In Bowser in the Fire Sea how to get the 8 red coins. The first one you need to go up a cage and then you jump over a hole. The second one you need to go to some moving platforms and then you need to jump through one of the moving platforms. The third one you need to go on a rope go up then hang onto a bar then climb somewhere. The fourth one you need to go on a moving platform then go off then jump down. The fifth one you need to go on a skinny ledge then go on a platform with a bully. The sixth one there's one floating above you, you need to wait and jump. The seventh one you need to go where fire is going to come out, go through when it's not coming out. Grab on pole and get to the top and that's the last one. That is how to get all 8 red coins. 

How to defeat the eyeballs in Super Mario 64 DS run around in circles on the touch screen.

You need to go on a shell or be Luigi and then you get inside a volcano and you go past a bunch of stuff and you get to a star.

How you get that is you need to be Wario or be in disguise and then you need to go towards the red switch and it opens up a grate towards a place. How I do it is I go as Luigi and fly over gaps. 

How to get all the silver stars in Lethal Lava Land, how I do it, is I go on a shell and I get all the silver stars and one that I just go to. 

How to get all the silver stars in Shifting Sand Land, you need to go inside the pyramid and then you need to go in one sand that pulls you that way and then it makes you go the other way. Another one is harder, you need to go down and going down are on two floating platforms. And that is it.

How to get all of the silver stars in Wet-Dry World - one of them you need to drain the water all the way down and punch a brick and then there will be a silver star hiding inside it. Another one is hard, you need to somehow blast a cannon, that's the only way I know of, blasting a cannon into the silver star and you'll get the silver star.  There's a silver star on a floating platform. There is one just in the water you need to jump up out of the water and then you get it. There's one on a curved platform you can stand on. 

How you get all the red coins in cool cool mountain is you need to be Yoshi, eat fire, and then melt two ice blocks and there's red coins. The other ones are on the ground. One is easy you just need to go to the end of the mountain at the very edge. Then you need to get one that's on a snowy part of a bridge. And one of them is up a snowy tree. One of them you need to ride a moving floating platform or go to where it is and then you can fall down and get to it. The other one is in a little corner and another one is on another side of a broken bridge. One of the broken bridges is on the top of the mountain - not that one. The one in the middle, I think, is a red coin on it. 

How to beat the first koopa race is you need a Mario disguise or to be actual Mario then you can race Koopa. You need to grab the Koopa sign once you get to the end and you need to go up the whole field, up the mountain to the top and there is a Koopa flag and you need to grab onto it or just go near it. 

How to get all of the red coins in Goomboss battle. First you need to defeat a pirhana plant and then you can get a red coin. Another one you need to go on a moving branch. 

How to get all the silver stars in the beach level. One of them is on a little island on the water. One of them is at the top of a high cliff. One of them is up a tree. Klepto has one. There's one in a little nook.

How to get the timer switch star in goomboss battle, you need to be Mario, then you need to hit an ! star switch and then you need to wall jump up a cage then you get to a grassy area with the star if you are on time. 

How you get the timer switch star in Whomp's Fortress is you need to break open a brick and then there's a timer switch. Then you need to press the switch and run off like a shot and when you get to circle, called a star's fear, that is where the star is.

How to get the switch star in Hazy Maze Cave you need to be in a Wario disguise or actual Wario. break open a black brick and there is a switch. Go on to the floating platform or go across the floating platform and not use it. And then you get the star. 

How to get inside the ancient pyramid you need to get to the very top of the pyramid.

How to get the big bully star in lethal lava land you need to unlock the basement go into the fire level and find a big bully. bigger than the little tiny ones. and then you need to bully it off. then you get a star. you need to run up platforms that fall away unless you want to fall in lava. 

How you get the shifting on top of the pyramid star, you need to get to the pyramid then you need to go up some stuff up to the very top and there's a little nook that you can fit in and you get the shining on top of the pyramid star. 

How you get the bully the bullies star you need to go to a place with 3 bullies, bully them all off and then a big bully spawns and you need to bully him off then you get the star. 

How to defeat the second bowser you need to grab him from his tail, swing him around, swing him into the spike bombs just once.

How to get the slide star in tall tall mountain, how you get that star is you need to go to the middle of the mountain, go past a wind gust, then a cloud blows, then jump into the wall.

How you get a snowman's big head star you need to jump over a gust of wind or go past a penguin who is blocking for you. Then you get to a bridge and you can go across it then you get on top of snowman's head and that is how to get the star.

How to catch the shells underwater, you need to press A underwater then you punch and grab the shell.

How you get the monkey magic star is you need to go to the top of the cliff with the mushrooms but it doesn't involve mushrooms. And then you get on top and there should be a monkey. Then you need to grab that monkey, then let it go, then he leads you to a little grate with a star then he opens it up and you need to fall down and then you can get the star.

How you defeat the wiggler is you need to go to small mode in tiny-huge island, ground pound on the volcano then it spawns a tiny hole you can't fit through. you need to go to big mode then come back there, there should be a hole and you jump down it. How you defeat the wiggler is you need to jump on its head 3 times. 

How you beat Koopa in the rematch Koopa star, you just need to run as usual then you just need to go near or grab the flag like usual.

How you get the Klepto star you need to jump up on Klepto then he gives you the star.