1,000,000 points
If you get 1,000,000 points or more in 1-P mode, instead of the announcer saying congratulations at the end, he will say "Incredible!"
30 second Kirby Team take down
When fighting Kirby Team, take out the first 2 Kirbys (Mario and D.K. Kirby). Another Kirby should land on the edge of the platform. As soon as that Kirby lands on the edge, throw him and another should land on the the opposite edge of the platform. Make sure you are running to the other side of the platform to meet each Kirby as they fall. Do this correctly and you should take out the Kirby Team in 30 seconds or less.
Beat the Jack Hammer
If you are Samus or Link there is a way that you can acctuly dodge the Jack hammer! Just use your throw!
Best Attack
You have probaly played Super Smash Brothers and thought, "I wonder what the best attack could be?" I believe Yoshi has the greatest attack. Start a game and select computer characters, Yoshi being your character, and choose a stage. As your enemy jumps, jump slightly above the character hold the control stick and R button down. Yoshi should be repeatedly kicking downward. Keep holding the buttons until you and your enemy land. For more damage, try to make your enemy jump higher, and do the same as before. Once, I made 56% doing that attack!
Borrow a Life
When playing a team multiplayer match, if you are defeated, but your team mate still has one or more life in stock. You can use one of his life to get back in the action by pressing A+B+Z+Start. Be sure to ask for permission from your friend!
Dred ( Jamaican) Kirby
Pick the Dark Red Kirby and suck up any color Link. When you have his power Kirby should look like a Jamaican.
East Characters
For Hidden Characters that take hours to unlock just leave your game on at night, or when your away for a few hours on Vs mode at "no Time Limit" and "no lives".(dont leave it on for over 5 hours)So when your done you will fight the character you want.( make sure you have a character that your good with when you fight the hidden character)
Flame Spin
OK, To do this cheat be mario or luigi. do there spin move will rapidly presing A, while Hitting A you must hit B rapidly. This cheat has been tested and works if done correctly.
Hidden characters
This code is to get the hidden players. To get Jigglypuff beat the game on any difficulty and watch the credits (or press start) and at the end you battle jigglypuff if you win you get him. To get Captain Falcon beat the game on any difficulty in 20 minutes or less. To get Ness beat the game on normal with 3 lives. To get luigi beat the practice 1 bonus with each of the main 8 characters. Well thats all (to beat the game i reccomend you use kirby or samus). Oh and you watch the credits and battle each person before you get them. Good luck!
Hidden level and characters
Here is all the characters you can get in super smash bros. To get Luigi you have to beat practice 1 with all of the 8 intial characters. The way you can beat Jiggleypuff is by beating the game regular any difficulty. The way to get Captain Falcon you have to beat the game under 20 minutes any difficulty(including bonus stages). Ness can be achieved by beating the game with 3 lives on normal difficulty and no continues(quite a challenge). To get the special secret character I believe the name is Pruin or the girl Jiggleypuff you have to beat the game with Captain Falcon any difficulty level. The secret bonus stage can be reached by you have to beat the game with all the characters.
Item List
To get the secret item list (which allows you to chose which items you want in VS. mode) set all players to the same fighter (i.e. All Mario) and let the computer control them (no human players). Stock 1, all at level 9. When the fight is over it should say that the item list has been unlocked.
Keeping your opponent off the platforms
Use the following moves when playing as the indicated character to knock your opponent off the platforms.
Mario and Luigi:
Press B to throw a fireball when they try to come back.
Ness:
Press B for the PK Fire if they come near your character in the air. Your opponent will be pulled down and paralyzed once it hits.
Yoshi:
If you are near the end of the platform, wait for your opponent to approach. Then, press B to turn them into an egg. If you are close enough to the edge, the egg will make them fall and they will not be able to get back up.
Donkey Kong:
After knocking an opponent off, press B to charge up the punch. Use the punch when they are close enough while in the air.
Kirby:
Press Up + B near the edge when your opponent approaches.
Link:
Press B to throw the boomerang after knocking them off the platform and they try to get close again.
Fox:
Press B to keep firing the blaster.
Samus:
Press B to charge up the gun, then shoot it when a knocked off opponent returns.
Pikachu:
Jump and press B to shoot a little ball of electricity. If it hits a returning opponent, they will be paralyzed.
Captain Falcon:
Press B to use the Falcon Punch when your opponent tries to return.
Jigglypuff:
Press B to use the lunging punch when a returning opponent is close enough.
Kirby Take Down / Easy Kill
Make Kirby fly up to the top of the screen when there is an opponent near the edge. When you go passed them, suck them up, and land on the stage( you might end up having to suck them in again) walk off the cliff while there in your mouth, and when you get low, spit them out and fly back up. Make sure the other person is not a Kirby too! This can only be done by Mario, NOT Luigi. Start by going to an opponent. Go so close you look like you are joined together. Use the tornado spin while quickly pressing a & b. Do this until there health is at 999%. While they will be excpecting another fire-spin, launch them with a big hand( over+a). They will blast away and die. Classic! >=D
Lives when dead on teamstock
When you are gone from battle on teamstock mode and someone else is on your team to barrow a life from them press and hold these buttons: A B R & START.
Make characters look evil, or scared
If you beat Very hard with one life, and no continues, some characters will look evil, and some characters will look scared!
Music menu
To get the music menu beat bonus1 & bonus 2 with all 12 characters then go to options and there it is.
One hit K.O.
During the game if you have a homerun bat you can knock out an opponent by pressing left or right and the A button towards the enemy and your character will turn red and sparkly and hit them off with one hit even if they are at 0%!
Secret Charge Up
When you have a bat and the star wand or the beam sword, you press over and A at the same time and it should do a little sparkle thing that does twice the damage.
Steal a life from your partner
During a multiplayer game if you run out of lives you can take one of your partners lives by pressing start.(It only works if they have two or more lives.)
Take off 30% against the enemy
With Ness use PK Thnunder and hit your self, this will take nothing away now while you are sparkling if you hit the enemy it will take off 30% in that one hit.
The Grandslam - Instant Kills
When you obtain a "homerun bat", you have a great weapon. Press A and left or right (depending what side your enemy is facing you) together at the same exact time. If performed correctly, your character will turn a reddish color and slowly bring back the bat, then sharply swing the bat. The power is amazing. If your enemy already has 50% damage or higher, the bat will instantly kill him/her.