That's not possible, go to the great maze and get to tabuu throw a trophy stand at him when he's weak then grab his trophy to get the other tabuu trophy beat boss battle mode with all characters.
you have to beat Tabuu, get all the character's trophies, and get through it all.
Tabuu is not an unlockable character on Brawl.
subspace is the realm of Tabuu, the final boss in Brawl. The other world, the World of Trophies or where the Smashers live in, are being bombed by Subspace Bombs. Each time a bomb explodes it takes a bit of the World of Trophies with it. Tabuu, since he can't exit Subspace, uses the bombs to make himself stronger with different parts of the World of Trophies.
when u get into the big room where all the characters and bosses' trophies were and the big purple doors
Tabuu is not a playable character in Brawl. Tabuu is the final boss in SSE.
None of the bosses including tabuu can be played.
You cannot play as tabuu, therefor, cannot 'get' him.
Tabuu is a Pokemon a rare Pokemon.
Tabuu is the final boss from Super Smash Bros. Brawl on Wii.
You can't play as Tabuu, you can only fight him.
Tabuu isn't a playable character. But you can get his trophy
Tabuu is unplayable unless you cheat.