So I created a tool for you to do just that. With the Mii Fighter creator you can have any character you want join the battle.
Masahiro SakuraiYou can only truly wow a player the first time he sees [a cutscene]. I felt if players saw the cutscenes outside of the game, they would no longer serve as rewards for playing the game, so I've decided against having them.
Masahiro SakuraiUsing a mouse, keyboard or gamepad make my arm tired, so I can't use them in a continual manner. The only device I can use for an extended period of time is a joystick. It's posing problems when I'm test-playing something in progress.
Masahiro SakuraiYou never know what's going to happen in this world. I'll just keep my mouth shut. That's a good idea.
Masahiro SakuraiAt the current time we have no plans. I consider my job at this point, and my main responsibility, to make the Wii U and 3DS versions the best and the fullest experience possible. That said, once finished, it's the type of thing we could take into consideration, but for now, you could consider DLC as not being in the cards.
Masahiro Sakurai