I was thinking a bunch of Diddy Kongs (they roughly have the same pose, hunched over and all) perhaps together with the Daisy from Risky's spirit. And then a small Ridley for a Cacklebat or something.
Thinking about spirits made me realize how easily Shantae overflows with potential.
A few ones that popped up while I was reading the past two pages:
Squid Baron as a giant red Kirby ofcourse, perhaps together with a Ganon or Zelda as Hypno Baron or something.
Twitch and Vinegar as a blond Inkling with a Ray Gun and a Samus or Peach with a Super Scope.
Bolo, Rotty and Sky as Richter, Peach/Daisy (prefers to pull turnips to reference Rotty's head toss) and B&K.
With so many characters to make spirit battles with, I think grouping them together could make some interesting fights as well as being able to include more characters through them.
I'd definitely say to make Shantae's friends the legendary spirit though.
However, I'm more curious to know if WayForward would pull an SNK on the music. "Ok, just take them all.".
I hope Jake Kaufman would do that, there's too much good stuff that adopts to a Smash setting really well.
If we're talking spirits, I might as well share some ideas that I had.
Rottytops
Uses Zero Suit Samus as Fighter and Luigi's Mansion as her stage.
She has increased Move Speed and Jump Height, referencing her abilities from the first game.
If it can be done, I'd love for the Luigi's Mansion stage to be permanently in the state, where the mansion is completely destroyed.
Bolo
Richter as Fighter. Wuhu Island as stage, that is permanently set in the fountain area.
He has increased strength.
And one thing I'd love for this battle to have (I don't care how abusable it is), is for the Spirit to straight up do nothing, if you have chosen a female character.
Sky and Wrench
Sky could use several of the female characters as her fighter or Yoshi.
She is accompanied by a tiny Ridley, as an ally in battle.
Stage is either Gerudo Valley or Omega Mushroomy Kingdom.
The tiny Ridley randomly turns giant.
Tinkerbats
Horde of Mr. Game and Watch's, that are all equipped with Killing Edges.
And Bob Omb's are the only items that spawn.
Stage is Battlefield Brinstar Depths
Squid Baron
Inkling Boy on Omega Great Cave Offensive
He taunts constantly, can levitate in the air for a short time and tiny Inklings may spawn as reinforcements.
When he takes a lot of damage, he turns metal.
Ammo Baron
Snake as Fighter and Figure 8 Circuit as stage.
He is accompanied by a Giant ROB and a couple Snake's as ally's.
The opponent permanently has the Tanooki Tail, allowing them to float.
Twitch and Vinegar
Zero Suit Samus and female Mii Gunner as Fighters and Halberd as stage.
Only weapons spawn as items and are drawn towards them.
Plus, there is Wind, pushing you off.
Pirate Master
Ganondorf as Fighter and Stage is either Omega Find Mii, Omega Reset Bomb Forest or Omega Unova League.
He has increased power and speed.
If you beat him once, you have to beat him again, but this time he is giant and has increased defense.