Adding Dixie Kong and Kiddy Kong as a duo would complete the Donkey Kong Country quartet.
On-Screen Appearance: Squawks flies onto the stage carrying Dixie and Kiddy, before flying away.
Standard A: Dixie does a spin with her ponytail, while Kiddy does a strong sideways slap.
Side A: Dixie performs the same attack, but she moves sideways this time. Kiddy does a small roll attack.
Up A: Dixie swipes her ponytail in an arc. Kiddy does the same move with his hand.
Down A: Both Dixie and Kiddy do a leg sweep. Dixie's is faster while Kiddy's is stronger.
Up Smash: The duo hold a Krimp above their heads, dealing decent damage.
Forward Smash: They throw a Green Banana, which is a projectile.
Down Smash: They place a TNT barrel in front of them. The explosion doesn't hurt them, and the barrel's design is from Donkey Kong 64.
Neutral Aerial: Dixie does her Helicopter Spin, while Kiddy rolls in place.
Forward and Back Aerial: They throw a white ball in front of and behind them, taken from Swanky's ball throwing minigame in DKC3.
Up and Down Aerial: The duo hold a banana bunch above/below theme.
B: Barrel Throw: Dixie and Kiddy carry and throw a Wooden Barrel the way they do in DKC3.
Side B: Team Up: Carry and throw each other. Dixie's throw is more powerful, while Kiddy's throw goes farther.
Up B: Barrel Cannon. The duo hide inside a Barrel Cannon, and fire themselves out of it.
Down B: Tag Team. Dixie and Kiddy switch places, like they do in Donkey Kong Country 3.
Pink and Cyan: Default
Purple and Green: Based on their alternate colors from the Color code from DKC3.
Red: Smash Original.
Magenta and Azure: Dixie wears a pink princess dress, while Kiddy wears a cyan swim diaper.
Yellow: Smash Original, but it could resemble the colors of the bananas.
Blue: Dixie's color is unique to Smash, but Kiddy's color is based on his Donkey Kong Country 3.
Brown: The colors resemble their appearance from Donkey Kong Land III.
Orange: Smash Original.
Dixie blows bubble gum. The color depends on her palette swap.
Kiddy sucks on his pacifier.
Up: Dixie rolls on Kiddy.
Side: Kiddy pulls on his sock, until he falls over. Dixie just looks away before he falls.
Down: Kiddy playfully picks into Dixie's hair, until she takes his hand away.
-Dixie takes a Pink banana out of a barrel full of them, when Kiddy scares her by popping out.
-Kiddy notices a Banana Bird, and he faces the screen and cutely flexes, making Dixie giggle.
-Dixie tries to feed Ellie a banana, but she instead sprays her and Kiddy with some water.
Boxing Ring Title: Double Trouble Cousins!
Kirby Hat: Kirby either gains Dixie's beret and ponytail, or Kiddy's onesie and pacifier.