There are 3 parts of the great maze
To beat the Great maze and unlock the final battle with Tabuu, the ruler of Subspace, you but do both: Beat the possessed characters Beat every boss to find out how many people you need, after beating Dark DK, a bunch of undefeated people with appear. when you defeat them all, a gateway showing Tabuu's wings appear. go to the middle of the room to face the mighty Tabuu
No you can enter the door after you have completed the great maze
I think you must defeat every shadow character and boss in The Great Maze.
If you mean The Great Maze, then no. You will have to beat all the bosses, though.
You have to beat all the stages. Then you have to beat the great maze and fight tabuu in the end.
Find your way around, and Beat the bosses and save. Eventually, you'll get there.
You beat all the dark people once again go in the big door and fight tabuu again
Beat the game
you can only unlock him in ssbb but if you have ssbb heres how to unlock him: beat classic mode 10 times but he does not just join you after you do this after you do this you have to beat him
you,ve got to fight tabuu.Beat him and you,ve beat adventure mode.
you have to beat Tabuu, get all the character's trophies, and get through it all.