Unlockable Characters

Baby Daisy Head over to Peach Garden and use Wario’s magnet to pull Daisy’s baby rattle from the fountain. Then, use Yoshi to head through the manhole cover on t
Baby DK Defeat DK's team
Baby DK In the DK Jungle, use Yoshi’s power to free him from a palm tree he’s stuck in.
Baby Luigi Do the levers in Mario's Stadium to connect the bridge to let him join you
Baby Mario After Getting Baby Luigi, go to the field where you battle Bowser Jr.'s Team and save him
Baby Peach Shes Hiding in a bush in Peaches Stadium
Birdo In Yoshi Park, Beat Bowser Jr.
Blooper Complete all tutorials in the practice section.
Blue Noki Complete his task in Mario's Stadium
Blue Pianta Get the key and save him. He is the one trapped in the shop, in Mario's stadium
Blue Shy Guy Shoot the pirahna plants in Yoshi's Ballpark
Boo Solve the block puzzle in Wario City by using DK and Wario
Daisy Complete Peach's Stadium
Funky Kong In the DK Jungle, save him from the Hammer Brother.
Goomba Help him trace his shop in Wario City
Gray Shy Guy Use Peach to get him out of the log he is hiding in at Yoshi Park
Green Koopa In Wario City, free him from the poster.
Green Noki Have Blue Noki in Team and Talk to him
Green Shy Guy Use Peach to get him out of the log he is hiding in at Yoshi Park
Green Toad Search the bush in Peach's Stadium after clearing Toadette's puzzle.
Green Yoshi Unlock Him At the manhole in Yoshi's ballpark
King Boo Find the Tiny Boos in a chest in Wario City and talk to him
King K. Rool Head over to the DK Jungle and defeat all four Kritters. You can then go to the waterfall, defeat him, and he’ll join.
Kritter In the DK Jungle, defeat King K. Rool
Light blue Yoshi Rescue him from Green Magikoopa in Yoshi Park
Monty Mole Use Peach on Monty outline on Mario Stadium's beach.
Paragoomba Use Yoshi's ground pound on one of the palm trees in Wario City
Paratroopa Defeat The minion guarding the lighthouse in Wario City
Peach Complete Her Stadium
Red Noki Have both others and talk to Him
Red Paratroopa In Wario City, pain the giant billboard with a paintbrush found in Yoshi Park.
Red Shy Guy Shoot the pirahna plants in Yoshi's Ballpark
Red Yoshi Find his brush that he lost. Find him in Yoshi's Stadium
Tiny Kong In the DK Jungle, defeat Bowser Jr.
Toad He wil join you when you start Peaches stadium
Toadette Talk to her in Peach's Stadium
Waluigi Find him on top of a skyscraper in Wario City
Wiggler Win a game at the toy field
Yellow Yoshi Use Yoshi to get him out of a tree he is stuck in at Yoshi Park

Hidden Fields - All of these are unlocked in the challenge mode

Bowser Jr. Playroom Beat Bowser Jr. in this stadium in challenge mode
Bowser's Castle Beat Bowser in Challenge Mode
Daisy Cruiser Buy the cruiser pass from the shop in Peach Ice Garden
Luigi's Mansion Buy Luigi's flashlight from the shop in Mario Stadium

Last Movie Beat Bowser twice

Unlock Minigame Madness - Beat all minigames on star difficulty (this cannot be played in challenge mode)

Minigame Madness Beat all Minigames on Star Difficulty

Unlock Night Feature - You are allowed to play in the day or night at all stadiums but Bowser's Stadium and Luigi's Mansion.

Play at Night Feature Beat Bowser Jr.'s Playroom in Challenge Mode.

You can unlock different badges by completing certain objectives.

Buddy Badge Get every character on your team
Error Item Badge Unlock every Error Item
Play Badge In Challenge Mode beat all of the mini games and win a game in Toy Field
Stadium Badge Unlock once you have opened all the playable ballparks.
Star Badge Unlock once you make all playable characters star characters.