no you cant
all you need to do is on brawl or training, pick the characters and then it will say choose your map. click on melee stages and then custom stages and then click on the custom stage you want to play on
I'm just going to assume that you're talking about the custom stage parts in brawl. To get one of the three sets of extra custom items, play on custom stages in 15 COMPLETE brawls. To get another, make 5 custom stages. To get the final add on, make 10 (maybe 15 or 20) custom stages.
What Is Jingle Brawl?
Yes. Few as there are, some new characters will be unlocked in Brawl.
No, there are no downloads but you can hack into it and make your 'own' characters. (I advised that you don't. It can mess up your game)
35 characters are in super smash bros brawl
There are 35 playable characters in Super Smash Bros Brawl.
Put plaster on the character who's texture you want to alter
there are 36 or 37 characters
No, there is no Super Smash Bros Brawl 2.
Custom stages are no longer downloadable.
You can't. Best you can do is hack Brawl and alter one of the characters. This is easiest on Brawl Plus.