Rey Mysterio's real mask:
If you pick Rey Mysterio he is not wearing his real mask. To make it his real mask, you have to go to create a superstar at the main menu and then pick Rey Mysterio. Go to apperance 1 and then choose mask after that choose mask and then pick # 16 for the mask.
Change John Cena's special:
To change John Cena's special to the f-u go to create superstar and then choose moves. Go to standing, then grapling 1 then go to the way bottom of the move then look for the move Death Valley Driver on page 13.