So, starting off, the jab flurry would work somewhat like Simon/Richter's, using the safety strap as a kind of whip. Furthermore, it also uses this strap as a grab, which tightens up when it actually grabs someone. The jab otherwise would basically be the Wiimote doing a flip which kicks the opponent upward, then making one of the Wiimote character select noises from Brawl (randomised, unless if it's used against a character from Brawl, in which case it's that character's voice clip.)
The side tilt would literally use the strap and kind of fling upward.
Up tilt would look a bit like a flip? Maybe like Sonic's up smash?
Down tilt summons a Balance Board which knocks characters upward.
Side Smash summons a Nunchuk, and the Wiimote uses this as a whip (kinda like ZSS's side special in looks)
Up Smash uses the strap again, kinda like Cloud's up smash (but as a whip, not a sword)
Down Smash summons the Wii Zapper, which fires in a downward direction forward and backward (in a similar way to ZSS's down smash, without the paralysis effect)
Dash attack summons the Wii Wheel, as the Wiimote rolls (kinda like Villager's neutral air.)
Neutral air is basically Villager's. However, the strap means there's a bit of a wider hitbox where the strap is.
Forward air is a swing of the Nunchuk, and so is back air.
Up air is basically the Wiimote going flat, and again, using the speaker inside it.
Down air summons the Glo sword peripheral (in a random available colour) which is basically Lucina's - with a spike in the very middle.
Neutral Special summons the Zapper again, which acts as a projectile. It can fire one of two projectiles - an Arrow (like Link's) which references Link's Crossbow Training, or a bullet (basically like Joker's, but faster and with less lag and damage. You can fire multiple bullets by holding the button) These are altered in an alternating fashion - you'd use an arrow, say, then it would switch to the bullets automatically, and back to the arrows after released again.
Up special uses the Balance Board beneath the Wiimote, and it jumps off it. The noise that plays if you actually jump on the Balance Board in Wii Fit would play? Furthermore, it would use the strap as a tether, which would have a shorter range than the actual model of Vine Whip (Ivysaur.) This could grab the ledge, but automatically pulls the Wiimote up.
Side Special would throw a disc, which would act in a very similar way to Mii Swordfighter's Chakram. The discs would have a number of appearances - being random Wii game discs, such as Brawl, Galaxy and Twilight Princess, to name a few. Holding it would charge it - so if you just flicked it, it would go forward a little with very low damage, whereas a full charge would have a similar damage and range to a fully charged Shadow Ball - albeit a little slower, and with a smaller hitbox.
Down Special summons the Nunchuk, which would be swung around the Wiimote like Simon's Down Smash. However, this would have a couple of interesting properties. It would reflect projectiles on the ground, for example. Furthermore, it has a completely different effect in the air - it works a bit like DK's Up Special, but doesn't leave the Wiimote in freefall. It would have a single, meaty hit, but wouldn't reflect in the air. Furthermore, it has no vertical coverage, but has a lot of horizontal coverage.
Final Smash essentially pulls the character into a cutscene by use of the cursor used in the Main Menu. The cutscene is basically the targeted characters being thrown into a void, and get attacked by tons of hits by the cursor, before the Wii makes an error sound and acts as the last, high damage and knockback, hit.
Alts are the traditional white, black, blue and pink, as well as the red Mario version, the green Luigi version, the yellow and green Bowser version, and the gold Zelda version, with the decals of the latter four.
The victory music would literally be the sound that plays when you open a game in the Wii Menu.
Taunts - The down taunt would summon the Balance Board, which the Wiimote would wobble on. The side taunt would summon the Reckless Safety Guy, who would do one of his traditional poses in front of the Wiimote, and up taunt would summon the Wheel, and the Wiimote would spin around inside it.
The stage would be the Wii Menu. Fighters would fight on the 12 boxes. If the Wiimote holds down taunt, it (like the star fox crew and pit) has a special effect, on the Wii Menu stage. Basically, it pulls up the Home menu (accessed by pressing the Home button on the console itself)
Music wise, there would mostly be different Channel (such as News Channel) themes, as well as a couple of themes from games like Wii Play and Wii Sports that aren't already in. Furthermore, it finally makes a file for 'Console Music.' It also has some system music from other consoles, like the Gamecube and Wii U.
Spirits would be a number of controllers and consoles from Nintendo's history, specifically being the NES, SNES, N64, Gamecube, Wii, Wii U and Switch controllers, and the NES, SNES, Virtual Boy, Gameboy, Gameboy Advance, DS, 3DS, Wii, and Switch consoles.
