Go to training mode and pick any character go toward the computer player and use a move that hits the player more than once this creates a combo of attacks so try to constantly hit the computer to get combos the best computer player to choose is bowser and the best character to choose is ness use his pk fire to do the work.
Get marth and beat classic mode with him
get all the characters
Go on Single Player mode and you will see Event Matches mode.
you have to do all star mode without continuing
You can get it in the lottery, in Classic mode's bonus stages, and in any stage on Adventure mode.
All-Star mode is unlocked by unlocking every playable character.
Unlock marth then use him to beat classic mode.
You fight all the characters.to unlock all star mode you must unlock mr.game&watch.
Play as Marth on classic mode (no continues) or play 900 vs matches.
you need to beat sonic in green hill zone in brawl mode
On Melee mode when your on the character selection screen put your cursor near free for all then press A now you will be in team battle mode.
You really can't unlock Toad in SSBM. But you can be peach and use her B move and she will pull Toad out. And on adventure mode where you fight the Yoshi's Toad is running around in the background and by the flag there is a toad there too.