Mario & Sonic at the Olympic Winter Games 3D

Mario & Sonic at the Olympic Winter Games 3D is an installment in the Mario & Sonic series. It was created by P&F Games Inc. for the Nintendo Switch 3D.

Playable Characters
There are a total of 75 playable characters in the game.

Mario Series

 * Mario
 * Luigi
 * Peach
 * Daisy
 * Yoshi
 * Toad
 * Bowser
 * Bowser Jr.
 * Wario
 * Waluigi
 * Donkey Kong
 * Diddy Kong
 * Rosalina
 * Toadette
 * Birdo
 * Nabbit
 * Dry Bones
 * Dry Bowser
 * Captain Toad
 * Metal Mario
 * Shy Guy
 * Magikoopa
 * Cappy
 * Funky Kong
 * King Boo

Sonic Series

 * Sonic
 * Tails
 * Knuckles
 * Amy
 * Dr. Eggman
 * Shadow
 * Blaze
 * Silver
 * Metal Sonic
 * Vector
 * Espio
 * Charmy
 * Big
 * Cream
 * Omega
 * Rouge
 * Jet
 * Wave
 * Storm
 * Zazz
 * Zavok
 * Sticks
 * Mighty
 * Ray
 * Classic Sonic

Friends Series

 * Austin
 * Mikayla
 * Emma B.
 * Logan
 * Caleb R.
 * Ellie
 * Cassidy
 * Zac
 * Alex S.
 * Nick B.
 * Carson
 * Emma H.
 * Aaron
 * Savannah
 * Hazel
 * Landen
 * Bridget
 * Anna F.
 * Chris T.
 * Katie
 * Zach M.
 * Dillon
 * Liv H.
 * Brad L.
 * Kimmie

Referees

 * Lakitu
 * Toadsworth
 * Orbot
 * Cubot
 * Caleb H.
 * Maddy

Guests

 * Ryan O.
 * Chad
 * Josh C.
 * Ally M.
 * Keelan
 * Alyssa R.

Audience Members

 * Goomba
 * Koopa Troopa
 * Shy Guy
 * Toad
 * Chao
 * Hero Chao
 * Dark Chao
 * Omochao
 * Flicky
 * Chirps
 * Tux
 * Porker

Events
There are a total of 28 events. 20 Olympic events and 8 Dream events.
 * Alpine Skiing Downhill
 * Alpine Skiing Giant Slalom
 * Ski Jumping Individual Large Hill
 * Ski Jumping Team Large Hill
 * Freestyle Skiing Moguls
 * Freestyle Skiing Ski Cross
 * Biathlon
 * Snowboard Parallel Giant Slalom
 * Snowboard Slopestyle
 * Halfpipe
 * Snowboard Cross
 * Speed Skating 500m
 * Short Track Speed Skating 1000m
 * Figure Skating Singles
 * Figure Skating Pairs
 * 4-man Bobsleigh
 * Skeleton
 * Luge
 * Ice Hockey
 * Curling
 * Dream Alpine
 * Dream Ski Cross
 * Dream Snowboard Cross
 * Dream Figure Skating
 * Dream Bobsleigh
 * Dream Ice Hockey
 * Dream Curling
 * Dream Snowball Showdown

Mario Series

 * Rougeport from Paper Mario: The Thousand-Year Door (Dream Figure Skating - Mario Story)
 * DK Summit from Mario Kart Wii (Dream Snowboard Cross)
 * Tall Trunk Galaxy from Super Mario Galaxy 2 (Dream Bobsleigh)
 * Warm, Fuzzy Plains and Battleship from Paper Mario: Sticker Star (Dream Figure Skating - Mario Story)
 * Bowser's Lava Lake Keep from Super Mario 3D World (Dream Snowball Showdown - Mario World)
 * Shiveria from Super Mario Odyssey (Dream Alpine)

Sonic Series

 * Station Square from Sonic Adventure (Dream Figure Skating - Sonic Story)
 * Crazy Gadget and Final Rush from Sonic Adventure 2 (Dream Figure Skating - Sonic Story)
 * Casino Park from Sonic Heroes (Dream Curling)
 * Night Carnival from Sonic Rush (Dream Snowball Showdown - Sonic World)
 * Tropical Resort from Sonic Colors (Dream Ice Hockey)
 * Faded Hills from Sonic Forces (Dream Ski Cross)

Music
There are a total of 50 songs in the game to unlock.

Mario Series

 * Main Theme from Super Mario Bros.
 * Athletic Theme from Super Mario Bros. 3
 * Main Theme from Super Mario World
 * Main Theme from Super Mario 64
 * Delfino Plaza from Super Mario Sunshine
 * Athletic Theme from New Super Mario Bros.
 * Coconut Mall from Mario Kart Wii
 * Gusty Garden Galaxy from Super Mario Galaxy
 * Puzzle Plank Galaxy from Super Mario Galaxy 2
 * Coincentration from Super Mario 64 DS
 * Mario Circuit from Mario Kart: Double Dash!!
 * Snow Theme from New Super Mario Bros. Wii
 * Cheep Cheep Beach from Mario Kart DS
 * Main Theme from New Super Mario Bros. U
 * DK Island Swing from Donkey Kong Country
 * Super Bell Hill from Super Mario 3D World
 * Main Theme from Super Mario Land
 * Main Theme from Super Mario Bros. 2
 * Rail Lift from Yoshi's Story
 * Cloudtop Cruise from Mario Kart 8
 * Title Theme from Super Mario Maker
 * Ruins from Wario Land: Shake It!
 * Fossil Falls from Super Mario Odyssey
 * Main Theme from Super Mario Land 2: 6 Golden Coins
 * Port Prisma from Paper Mario: Color Splash

Sonic Series

 * Rooftop Run - Day from Sonic Unleashed
 * Angel Island from Sonic the Hedgehog 3
 * City Escape from Sonic Adventure 2
 * Windy Valley from Sonic Adventure
 * Right There, Ride On from Sonic Rush
 * Palmtree Panic from Sonic CD
 * Seaside Hill from Sonic Heroes
 * Flying Battery from Sonic and Knuckles
 * A New Venture from Sonic Rush Adventure
 * Let the Speed Mend It from Sonic and the Secret Rings
 * Reach for the Stars from Sonic Colors
 * His World from Sonic the Hedgehog (2006)
 * Misty Lake from Sonic and the Black Knight 
 * Splash Hill from Sonic the Hedgehog 4, Episode 1
 * Super Sonic Racing from Sonic R
 * Neo Green Hill from Sonic Advance
 * Leaf Forest from Sonic Advance 2
 * Route 99 from Sonic Advance 3
 * Diamond Dust from Sonic 3D Blast
 * White Park, Act 2 from Sonic the Hedgehog 4, Episode 2
 * Babylon Garden from Sonic Riders
 * Final Factory from Sonic Free Riders
 * The Deadly Six from Sonic Lost World
 * Hi-Spec Robo Go! from Sonic Mania
 * Fist Bump from Sonic Forces