The Great Maze

Well to see the Bowser faces you have to be close enough to the end of it. What you first have to do is beat all the characters in the game you have unlcked so far. You can see this by ging into the room that looks like the previous levels with all the trophies of the people who's clones you heve defeated. When there are alot you still have to defeat more when there are only a couple you are alomst done. You should start and look everywhere doble-check each satge and make sure there are no doors you missed. Then once you have beaten all the characters there are all the previous bosses as well. These bosses are all the ones you have beaten up to this point. If you do all this you will cause a door that leads you to tabbu to appear in the room where all the trophies were. Beat him and you will unlock sonic if you haven't already. It will also say you have cleared the SSE

You have to go through the maze in a big circle and then the bowser marks appear

They aren't Bowser faces, they just look like Bowser faces. And you have to be near to completion of the Great Maze to see them. That means you have to have beaten most of the bosses and shadow characters. Afterwards, you can look on the map for the "Bowser" faces. There is a door in the Jungle and in it you first face Shadow Donkey Kong, then you end up in a room with tons of characters and bosses in it. That tells you about how many shadow characters and bosses you still have to beat before being able to go through the huge glowing door where the final boss awaits. I said that just incase no one wants a spoiler, but it's already been said in other answers, so there is no point.

Smash Bros. Brawl, the Great Maze

The Bowser Faces appear only after you travel through the maze in a circle, beat a few bosses, and see the big purple room with the character trophies in it. After that, the Faces should appear and you can find them easily and beat them. After they are all beaten, go back to the big purple room.




OzzyZigg

Defeate all shadow characters and bosses and enter the gient door where the trophies of the undefeated charecters and bosses used to stand. the faces apeare after you have gotten around in a circe of the maze.

ive been throught the maze over and over again.. i have fought and killed everyone..but when i go to that puruple room in the center of the map... nothing happens..nothing.

you have to kill every Bowser on the map (pause menu) and it gets difficult finding all the doors. p.s. i can't find the door that leads to meta ridley.

Meta ridley? You get to him once your in the research facility again.

I have beaten tabuu and it says I only have 79% of the whole thing complete

You have to beat all bowser faces. For meta ridley you have to go to the bottom left of the maze.

PS: I have beaten all bowser faces and still the door to tabuu did not appear

I have got all the bowser faces and some of them are not in the map they are beside it.

I keep wondering why but I can't be bothered to look it up so basically go around the maze until the bowser faces appear then go to each one and wonder around till a boss comes.

Each time you defeat a boss a little star should appear where the bowser face orriginally was.

PS save right before you battle a boss to save time!!!

Ok so I have beaten all the bosses and shadow players but now no doors open what do I do?

There is no door to tabuu when you finish off the other bosses and characters. You need to go into the center of the purple trophy room and press the up arrow on your control pad. Your character will walk into what looks like a colorful break in the background of the screen. Then you will see tabuu and unlock a new character if you have not already. However, the end completion percentage may not be 100%. I believe that's because you have not gathered all trophys, gone through all the extra doors throughout the game, or just have other sorts of missing data.