Here are some people, and their movesets, (B) only and final smash.
Goemon: Mystical Ninja
(B): Coin Throw (if charged will become Emblem of Fire)
(Side B): Chain Pipe (goes horizontal)
(Up B): Chain Pipe (goes vertical)
(Down B): Sushi/Fortune Doll (he will randomly pull these out with the fortune doll being the rarest)
(Special): Impact ? Goemon takes out his Trident Shell and blows in it. Once this happens, a beam shoots down upon Goemon and lifts him towards the light. You will then see Impact landing behind the stage, when this happens Impact?s theme song from Mystical Ninja will play. You will be able to use the similar moves you get to use in Goemon?s Great Adventure robot fights. The same code and buttons will apply to each move like (Z) for the lasers, (A) for punches, (B) for jabs, and one of the most popular combos, up (C), down (C), up (C), down (C), & (A) for repeated punch. Once the special is about to run out, you?ll know this when Impact is about to blow up, you will be able to use the super beam, down (C), down (C), (Z).
Ebisumaru: Mystical Ninja
(B): Shuriken
(Side B): Solid Megaphone
(Up B): Twirl
(Down B): Hip Attack
(Special): Poison Mist (A.K.A. his fart move) ? Like in the end of the game Goemon?s Great Adventure when Ebisumaru stops Dochuki with his ?poison mist?, Ebisumaru will make a big blast of ?poison mist? sending everyone off the stage.
Sasuke: Mystical Ninja
Notice - (Down & Up A): Spiky Topknot (also up smash)
(B): Throwing Kunai (if charged will become Kunai of Severe Cold)
(Side B): Bomb (if charged will become Fire Cracker Bomb)
(Up B): Fly Magic
(Down B): Plant Bomb (if charged will become Fire Cracker Bomb)
(Special): Fireworks ? As in the mini game played in Majin Island (a world in Goemon?s Great Adventure), a line of firework posts will be set across the whole stage. Sasuke will light all of them and then the whole place will be bombarded by fireworks.
Yae: Mystical Ninja
(B): Bazooka
(Side B): Charging Katana Slice (like Ike?s Quick Draw)
(Up B): Katana Air Slice (like Marth?s Dolphin Slash)
(Down B): Katana Shield (like Pit?s Angel Ring)
(Special): Mermaid Magic ?The whole stage will go underwater and then she will start swimming around the stage attacking opponents with her bazooka.
Bowser Jr.: Super Mario Sunshine
(B): Paint Ball
(Side B): Paint Whip (Like Zero Suit Samus?s Side B)
(Up B): Paint Rope
(Down B): Transform to Shadow Mario
(Special): Mecha Bowser ? The one from Super Mario Sunshine, Bowser Jr. will hop in the Mecha Bowser. Like Impact, you can control your move set. (B) to use your flamethrower, (A) for bullet bills (also homing), and (Z) to shoot fireballs.
Shadow Mario: Super Mario Sunshine
(B): Paint Gun
(Side B): Paint Trail
(Up B): Paint Slide (Like Squirtle?s Waterfall)
(Down B): Transform to Bowser Jr.
(Special): Paint Slash ? Like Link?s Triforce Slash, the unlucky opponent will be trapped inside the ?M? and Shadow Mario will attack them with multiple hits and then with one big one.