no
you have to beat adventure mode to fight him.
you need to get to the end of adventure mode when you fight tabuu
go to the part in adventure mode where you fight tabuu and wait because sonic will come and then he's a playable character. defeat tabuu and then sonic is playable
You can enter Tabuu's door, and defeat him to beat the game.
There is an adventure mode in this game and at the end of it you will fight against him
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.
The ultimate challenge in Adventure is defeating Tabuu, and the ultimate challenge in Events is completing the final event (number 41)
None of the bosses including tabuu can be played.
Tabuu can't be unlocked as a playable character.
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.