First one: Someone please make a moveset for Iwata. Bonus points for including "please understand".
Challenge accepted! Please understand that it may not be the best.
A
Neutral A: Iwata jabs in front of him with a Wii Remote.
A Combo: Iwata repeatedly jabs, eventually with a Nunchuk after five hits.
Smashes
Side: Iwata grabs the end of a GameCube controller cord and uses the controller as a weapon, throwing it in front of him.
Up: Iwata faces the camera and raises his hand, launching nearby fighters into the air.
Down: Iwata throws a banana onto the ground in front of him. If it hits a fighter, they are knocked back.
Aerials
Neutral: Iwata jabs in front of him.
Side: Iwata leans forward, headbutting an opponent in front of him.
Up: Iwata holds a 3DS in his hand and pushes his arms up, hitting any enemy above him with the 3DS.
Down: Iwata pushes his legs down, acting as a meteor smash (Very similar to Captain Falcon's Down Aerial).
Specials
B: Iwata summons Takamaru's katana and cuts vertically in front of him. This also hits enemies directly above him.
Side: Iwata bows as opponents nearby are mystically pushed into the ground.
Up: Reggie appears, throwing Iwata into the air.
Down: Iwata puts a 3DS on the ground. When Down is pressed again, a fireball spews out of the 3DS, burning any enemy above it. However, the 3DS is broken afterwards and a new one needs to be put down (Like Snake's Down Special).
Final Smash
Greater Assistance: Iwata summons for a greater force to assist him. Miyamoto descends from the sky, boosting Iwata's strength, speed, and making him invincible for a short time before leaving.
Taunts
Up: Iwata turns to the camera and says "Tune into next week's Nintendo Direct!"
Down: Iwata summons Reggie as they high-five.
Side: Iwata sits down on a chair and falls asleep. As much as the button is held, Iwata sleeps (Every ten seconds, he snores).