Beta elements

There were many beta elements in Brawl but, the most talked about ones are the The Forbidden Seven. Those 7 might have been playable characters that did not make the cut in time and there was unused date for a Ridley assist trophy. The Forbidden 7 characters were Dixie, Dr. Mario, Mewtwo, Roy, Toon Zelda, Toon Sheik and Pra Mai aka  Prasule and Mainun.

Here's the full list of beta elements

I would have been cool to play as Dixie and Toon Zelda and the return of the Doc, Roy and Mewtwo would also be cool. The beta character artwork looks a bit creepy.

I'm guessing Toon Zelda would've been Tetra right? Well, more than likely, I don't think Toon Zelda was even used until Spirit Tracks which released after Brawl...so it wouldn't make sense.

Everything else would've been awesome, the characters, and that visible damage thing. But there weren't all that many differences from the beta to the final version it seems.