For the sake of not making a duplicate thread, I'll just bump this thread to post my suggestions
of Shigeru Miyamoto.
First of all, he'll get at least three fighting styles for his normal attacks. His basic style is just hand-to-hand combat, which would be just regular attacking. The other two are later discussed.
First to the special attacks:
B: Who are you?
This will give Miyamoto one of the other two fighting styles. He either puts on a cap and mustache similar to Mario's, or draw shield and Master Sword like Link's. The A-attacks are then affected. Pressing B again will turn you back to regular Miyamoto. There is however a short lag of a half second in switching. Each of the fighting styles have their own advantages and disadvantages. Miyamoto's regular is the normal one. Mario's is more strength based, at cost of speed, and Link's are speed-based, at cost of strength.
^B: Playing = Believing
Miyamoto uses the Wiimote to shoot a beam out of it, giving Miyamoto a boost in the direction you choose. There is a short lag between drawing and shooting, so you could still aim before getting the boost. Default is down, and it will only boost down, sideways or something in between (seeing as boosting up doesn't make much sense). The beam gives your opponent either burn or ice damage, depending on the colour, although the burn damage is more frequently.
>B: Touching is good
Miyamoto draws a large stylus and homeruns you out of the field. Okay, it's not as powerful as the baseball bat, but it does have a good knockback. Unfortunately it doesn't give much damage.
vB: Feel everything
This is one of the easiest dodgable attacks, but powerful nontheless. Miyamoto will stom on the ground with something, most probably a sort of fist attack, which gives earthquake damage to the people near him, which is indicated by a yellow glow. It's easy dodgable, because only players on the ground are affected, airborn players have nothing t fear... until they land.
Special attack: Now you're playing with power
This one I haven't worked out yet, but the name fits it, seeing as this was the slogan for the console which set the name of Miyamoto for good.