THERE IS NO SUCH THING AS UNLOCKING TABUU!!!
For proof, when you unlock every character, it even awards you for it. If you still don't believe me, even keep looking for videos on YouTube that show you how to unlock him until you get bored of Rick-Rolls that come a lot.
I'm sorry but the only way to get Tabuu is by hacking the game you can't unlock him in the traditional way.
Tabuu is not a playable character in Brawl. Tabuu is the final boss in SSE.
tabuu is not a real character. you can not unlock him.
Tabuu can't be unlocked as a playable character.
None of the bosses including tabuu can be played.
There are 2 ways to fight tabuu: After getting through the great maze you can open the last door in the middle of the map which leads to tabuu. Also the last boss in boss battle mode is tabuu.
You cannot play as tabuu, therefor, cannot 'get' him.
Tabuu is not an unlockable character on Brawl.
There is not a cheat code that lets you play as Tabuu.
You can not get tabuu as a character unless you hack.
Tabuu is a Pokemon a rare Pokemon.
if you mean tabuu from ssbb then no. totally different simulated universes
You can't play as Tabuu, you can only fight him.