Note: This game is also titled Super Mario Stadium: Family Baseball.Bonus fields
Successfully complete the indicated task in Challenge mode to unlock the corresponding field.
- Bowser's Castle: Defeat Bowser in Challenge mode.
- Bowser Jr. Playroom: Defeat Bowser Jr. at that stadium.
- Daisy Cruiser: Buy the cruiser pass from the shop at Peach Ice Garden.
- Luigi's Mansion: Buy Luigi's flashlight from the shop at Mario Stadium.
Successfully complete the indicated task to unlock the corresponding character. Note: There are multiple ways a specific character can be unlocked.
Use Wario's magnet to pull Daisys baby rattle from the fountain at Peach Garden. Then, have Yoshi go through the manhole cover on the left side of the garden to find a crying baby. Give Baby Daisy the rattle to unlock Baby Daisy.Baby DK
Use Yoshi's power at DK Jungle to free Baby DK from the palm tree to unlock Baby DK. Alternately, defeat DK's team.Baby Luigi
Pull the levers in Mario's Stadium to connect the bridge to unlock Baby Luigi.Baby Mario
Unlock Baby Luigi, then save Baby Mario at the field where you battle Bowser Jr.'s team to unlock Baby Mario.Baby Peach
Use Princess Peach's heart power on the grass Toad statue at Peach Garden to unlock Baby Peach.Birdo
Defeat Bowser Jr. at Yoshi Park to unlock Birdo.Blooper
Have Princess Peach use her heart power on the bubbles in the water at the dock in Mario Stadium to unlock Blooper. Alternately, successfully complete all tutorials in Practice mode.Blue Noki
Successfully complete Blue Noki's task at Mario's Stadium to unlock Blue Noki.Blue Pianta
Get the key, and save Blue Pianta from the shop at Mario's Stadium to unlock Blue Pianta.Blue Shy Guy
Shoot the Piranha Plants at Yoshi's Ballpark to unlock Blue Shy Guy.Boo
Have DK and Wario solve the block puzzle at Wario City to unlock Boo.Daisy
Successfully complete Peach's Stadium to unlock Daisy.Funky Kong
Save Funky Kong from the Hammer Brother at DK Jungle to unlock Funky Kong.Goomba
Help Goomba trace his shop at Wario City to unlock Goomba.Gray Shy Guy
Have Peach get Gray Shy Guy out of the log at Yoshi Park to unlock him.Green Koopa
Free Green Koopa from the poster at Wario City to unlock Green Koopa.Green Noki
Unlock and have Blue Noki on your team, then talk to Green Noki at the beach at Mario's Stadium to unlock Green Noki.Green Shy Guy
Have Peach get Green Shy Guy out of the log at Yoshi Park to unlock him.Green Toad
Successfully complete Toadette's puzzle, then search the bush at Peach's Stadium to unlock Green Toad.Green Yoshi
Free Green Yoshi at the manhole at Yoshi's ballpark to unlock Green Yoshi.King Boo
Talk to the Tiny Boos in a chest at Wario City to unlock King Boo.
Defeat all four Kritters at DK Jungle. Then, go to the waterfall, and defeat King K. Rool to unlock King K. Rool.Kritter
Defeat King K. Rool at DK Jungle to unlock Kritter.Light Blue Yoshi
Rescue Light Blue Yoshi from Green Magikoopa in Yoshi Park to unlock him.Monty Mole
Use Peach on the Monty outline on the beach at Mario Stadium to unlock Monty Mole.Paragoomba
Use Yoshi's ground pound on one of the palm trees in Wario City to unlock Paragoomba.Paratroopa
Defeat the minion guarding the lighthouse at Wario City to unlock Paratroopa.Peach
Successfully complete Peach's Stadium to unlock Peach.Pink Pianta
Go to Mario Stadium to find Pink Pinata in a palm tree on the beach to unlock Pink Pianta.Red Noki
Unlock and have Blue Noki and Green Noki on your team, then talk to Red Noki on the giant clam at Mario's Stadium to unlock Red Noki.Red Paratroopa
Find the paintbrush at Yoshi Park, then use it to paint the giant billboard at Wario City to unlock Red Paratroopa.Red Shy Guy
Shoot the Piranha Plants at Yoshi's Ballpark to unlock Red Shy Guy.Red Yoshi
Find the brush that Red Yoshi lost, then find him at Yoshi's Stadium to unlock Red Yoshi.Tiny Kong
Defeat Bowser Jr. at DK Jungle to unlock Tiny Kong.Toad
Start Peach's Stadium to unlock Toad.Toadette
Talk to Toadette at Peach's Stadium to unlock her.Waluigi
Find Waluigi on top of a skyscraper in Wario City to unlock him.Wiggler
Reset the roller coaster that Wiggler is riding at Yoshi Park to unlock Wiggler. Alternately, win a game at Toy Field.Yellow Pianta
Go to Mario Stadium to find Yellow Pinata in a barrel and unlock him.Yellow Yoshi
Use Yoshi to get Yellow Yoshi out of a tree at Yoshi Park to unlock Yellow Yoshi.
Locate the Secret Shop, then successfully complete the indicated task to unlock the corresponding item:
- Star Candy: Make any purchase at the Secret Shop.
- Star Candy (x2): Purchase a Star Candy.
- Super Star: Purchase three Star Candy (x2).
Unlock Wario, then use his treasure opening ability at the listed locations in Challenge mode to find the corresponding Error items:
- Fire Ball: Wario City
- Mini Boos: Mario Stadium
- POW Ball: Peach's Ice Garden
Successfully complete the indicated task to unlock the corresponding badge:
- Buddy: Get all characters on your team.
- Error Item: Unlock all Error Items.
Win at Bowser Jr.'s Playroom in Challenge mode to unlock the ability to play during the day or night at all stadiums except Bowser's Stadium and Luigi's Mansion.Minigame Madness
Successfully complete all mini-games on the Star difficulty to unlock Minigame Madness. Note: This cannot be done in Challenge mode.Final movie
Defeat Bowser two times to unlock the last movie.Team characters
The following teams are made up of the indicated players:
- Bowser Monsters: Bowser, Bowser Jr., Hammer Bro, Fire Bro, Boomerang Bro, Dry Bones, Green Dry Bones, Dark Bones, Blue Dry Bones, Magikoopa, Red Magikoopa, Green Magikoopa, Yellow Magikoopa
- DK Wilds: DK, Diddy Kong, Dixie Kong, Tiny Kong, Funky Kong, Baby DK, King K. Rool, Kritter, Brown Kritter, Red Kritter, Blue Kritter
- Mario Fireballs: Mario, Luigi, Blue Pianta, Red Pianta, Yellow Pianta, Blue Noki, Red Noki, Green Noki, Monty Mole, Blooper, Baby Mario, Baby Luigi
- Peach Monarchs: Peach, Daisy, Red Toad, Blue Toad, Yellow Toad, Green Toad, Purple Toad, Toadette, Toadsworth, Baby Peach, Baby Daisy, Petey Piranha
- Wario Muscles: Wario, Waluigi, Koopa, Red Koopa, Parakoopa, Red Parakoopa, Goomba, Paragoomba, Boo, King Boo
- Yoshi Eggs: Yoshi, Red Yoshi, Pink Yoshi, Light Blue Yoshi, Blue Yoshi, Yellow Yoshi, Birdo, Red Shy Guy, Yellow Shy Guy, Blue Shy Guy, Grey Shy Guy, Green Shy Guy, Wiggler