Geno does not exist in SSBB. It is possible to texture hack to make a character look like Geno, but Geno is not a real character in SSBB.
To unlock Ness in SSBB ,you must play 5 (offline) brawl matches, reflect 10 projectiles or defeat him in Subspace Emissary Mode.
When you get ssbb and have a N64 with ssb for it,unlock marth on ssbb with ssb on then you will unlock marth on ssb if ssb is on and marth has won a vs match on ssbb ,finnaly clear classic with marth on ssb and you will unlock roy on ssb&ssbb.
Not possible without cheating.
That's not possible.
That's not possible.
You can enter Tabuu's door, and defeat him to beat the game.
Don Henley - Last Worthless Evening
Defeat cldassic on hard with link,play 800 brawls and clear the subspace emissary.
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Sonic is in SSBB.
Not possible. He is neither a Nintendo Character nor a regular game character such as Sonic.