Mario & Sonic at the Olympic Winter Games (Wii)

Mario & Sonic at the Olympic Winter Games is a sports game for the Wii and Nintendo DS, and is the follow-up to Mario & Sonic at the Olympic Games. The game is produced under license from the International Olympic Committee in relation to the Olympic Winter Games taking place at Vancouver in 2010. Like the previous installment, this game is a collaboration between Sega and Nintendo featuring characters from both the Mario series and the Sonic the Hedgehog series.

Although Sega was handling most of the development for both versions of this game, as it did for the original Mario & Sonic at the Olympic Games, they were also handling publishing/marketing duties for all territories outside of Japan, while Nintendo has done publishing/marketing duties for Japan itself.

Versions
The game features modes that are exclusive on the Wii and DS versions.

Wii Version
The Wii version employs the Wii Remote controls, as well as the Wii Balance Board. The game features a Festival mode where the player starts from the opening to the closing ceremony. In the Festival mode, the player can choose to play an individual festival, where the player faces off against 7 other CPU characters, or a team festival, where the player can choose three other teammates to play.

New to the game is a marketplace that allows the player to purchase various items such as clothes and accessories for the player's Mii, tunes from both series, and customizable snowboards. Players can purchase these items using Star Tokens, which he/she earns based on his/her performance. Also, the gallery for Olympic trivia has now been replaced with the Library.

Also, all authentic (real-life based events) are unlocked from the start. Dream Events are in this game and all of them (excluding 2) need to be unlocked.

The aforementioned Festival Mode, is a special adventure mode where the participants must compete with some boss characters from the Mario and Sonic series in various events. Both the DS and the Wii versions take place in a place known as Christmas Village

Wii Olympic 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
 * Snowboard - Halfpipe
 * Snowboard - Snowboard Cross
 * Speed Skating - Speed Skating 500m
 * Speed Skating - Short Track
 * Speed Skating - Short Track Relay
 * Figure Skating
 * Bobsleigh - Skeleton
 * Bobsleigh
 * Ice Hockey
 * Curling

Wii Dream Events

 * Dream Alpine - Individual
 * Dream Alpine - Team
 * Dream Ski Jumping - Individual
 * Dream Ski Jumping - Team
 * Dream Ski Cross - Individual
 * Dream Ski Cross - Team
 * Dream Snowboard Cross - Individual
 * Dream Snowboard Cross - Team
 * Dream Short Track
 * Dream Figure Skating
 * Dream Bobsleigh
 * Dream Ice Hockey
 * Dream Curling
 * Dream Snowball Fight
 * Dream Gliding - Individual
 * Dream Gliding - Team

DS Version
The DS version features Adventure Tours, a single player mode with a plot that involves Bowser and Dr. Eggman's scheme to melt all the snow by capturing the Snow Spirits. The Adventure Tour introduces one of the spirits called Frosty. Just as seen in the Wii version of the game, the DS rendition includes the introduction of boss characters appearing in the Adventure Tour mode. These bosses will be present in certain events where the player will have to compete against them to clear their missions.

Also, all authentic (real-life based events) are unlocked from the start. Dream Events are in this game and all of them need to be unlocked.

DS Olympic Events

 * Skiing - Alpine Skiing GS
 * Skiing - Moguls
 * Skiing - Nordic Combined
 * Skiing - Ski Jumping LH
 * Skiing - Cross Country Skiing
 * Skating - Speed Skating 500m
 * Skating - Short Track 500m
 * Skating - Figure Skating
 * Snowboard - Snowboard Cross
 * Bobsleigh - Bobsleigh
 * Bobsleigh - Skeleton
 * Ice Hockey - Ice Hockey
 * Curling - Curling
 * Biathlon - Biathlon
 * Luge - Luge

DS Dream Events

 * Dream Skiing - Ski Cross Racing
 * Dream Skiing - Rocket Ski Jumping
 * Dream Skiing - Super Sonic Downhill
 * Dream Skating - Intense Short Track
 * Dream Skating - Ultimate Figure Skating
 * Dream Snowboard - Extreme Snow Boarding
 * Dream Snowboard - Deluxe Halfpipe
 * Dream Bobsleigh - Blazing Bobsleigh
 * Dream Ice Hockey - Fever Hockey
 * Dream Curling - Curling Bowling
 * Dream Biatlon - Ski Shooting
 * Dream Snow Machine - Snow Machine Fight

Characters
All of the characters from the previous game, including Miis for the Wii version, return. There are also four new characters who were not present in Mario & Sonic at the Olympic Games. Retaining the first game's style, all playable characters are unlocked from the start (including new participants).

Team Mario

 * Mario
 * Luigi
 * Peach
 * Daisy
 * Yoshi
 * Wario
 * Waluigi
 * Bowser
 * Donkey Kong (new)
 * Bowser Jr. (new)

Team Sonic

 * Sonic
 * Shadow
 * Tails
 * Amy
 * Blaze
 * Knuckles
 * Vector
 * Dr. Eggman
 * Metal Sonic (new)
 * Silver the Hedgehog (new)

Other
It is possible to customize the outfit of the Miis in the game. Aside from differently colored suits, the Miis can also wear outfits that resemble the ones of the regular playable characters and a few bosses. For example, it is possible to give a Mii a Mario costume or an Amy costume. The player can buy equipment through the store in the game and unlike Mario & Sonic at the Olympic Games, the Miis' stats gets altered depending on the equipment they wear.
 * Shy Guy (DS version, but only as a goalie in Ice Hockey and Fever Hockey)
 * Mii (Wii version only)
 * 2 Chao (DS version, but only as scrubbers in curling)

VIP Members
These characters only appear as cameos and tells the player that they've been watching the player in certain events. Pausing the game and hitting the minus button when they're spotted gives the player 100 Star Points. The cameo characters are:
 * Toad
 * Birdo
 * Lakitu
 * Shy Guy
 * Penguin
 * Charmy Bee
 * Espio the Chameleon
 * Cream the Rabbit
 * Big the Cat
 * Chaos
 * Pianta
 * Chain Chomp

When the player spots Birdo and Big the Cat, they will also be given costumes.

Around 4 weeks before Christmas, Santa Claus also appears as a VIP (Wii version Only). Unlike other VIP characters, Santa gives 300 Star Coupons instead of 100.

Mario Rivals

 * King Boo - Alpine Skiing (Wii only) / Giant Slalom (Individual Festival Only & DS)
 * Big Bullet Bill - Skeleton (Individual Festival Only)/Bobsleigh (Team Festival Only)/Blazing Bobsleigh (DS)
 * Dry Bowser - Ice Hockey (Wii)/Curling Bowling and Super Sonic Downhill (DS)
 * Dry Bones - Ice Hockey (alongside Dry Bowser)/Curling (Team Festival Only & DS)
 * Bowser Jr. - Speed Skating 500m (DS only)
 * Bowser - Blazing Bobsleigh, Fever Hockey, Extreme Snowboarding (Ds only, alongside Dr. Eggman)

Sonic Rivals

 * E-123 Omega - Speed Skating 500m (Individual Festival)/Short Track Relay (Team Festival)/Intense Short Track (DS)
 * Jet the Hawk - Snowboard Cross (Wii)/Deluxe Halfpipe (DS)
 * Rouge the Bat - Figure Skating
 * Eggman Nega - Ski Cross (Wii)/Skeleton & Nordic Combined (DS)
 * Metal Sonic - Rocket Ski Jumping (DS only)
 * Dr. Eggman Blazing Bobsleigh, Fever Hockey, Extreme Snowboarding (DS only, alongside Bowser)

Locations
Locations from both Mario and Sonic series appear in the Dream Events. The following stages are:

Mario series

 * Mario Circuit (featured in Dream Ski Cross) from Mario Kart Wii
 * Bowser Castle (featured in Dream Ice Hockey) from Mario Kart Super Circuit
 * Good Egg Galaxy (featured in Dream Ski Jump) from Super Mario Galaxy
 * Sherbet Land (featured in Dream Curling) from Mario Kart 64
 * In Dream Figure Skating, three backgrounds from New Super Mario Bros. appear: World 1, Bowser's Castle, and Peach's Castle.
 * Dream Snowball Fight has the same music as in Cool, Cool Mountain and Snowman's Land from Super Mario 64.

Sonic series

 * Radical Highway (featured in Dream Snowboard Cross) from Sonic Adventure 2
 * Seaside Hill (featured in Dream Alpine) from Sonic Heroes
 * Nocturne/Special Stage (featured in Dream Bobsleigh) from Sonic Chronicles: The Dark Brotherhood and Sonic Heroes
 * Egg Factory (featured in Dream Speed Skating) from Sonic Riders
 * In Dream Figure Skating, three Sonic backgrounds appears: Green Hill Zone (from Sonic the Hedgehog), Death Egg Zone (from Sonic the Hedgehog 2) and the destroyed Station Square (from Sonic Adventure).
 * Dream Gliding has the same music as in Sky Sanctuary Zone from Sonic and Knuckles.

Trivia

 * Most of the DS profile artworks is borrowed from earlier games like Super Mario Galaxy, Super Mario 64 DS, Mario Party 7, Mario Party DS, Dance Dance Revolution: Mario Mix, Mario Party 8, Sonic the Hedgehog (2006), Mario & Sonic at the Olympic Games, and Sonic Unleashed. Other art is either new or borrowed from the Sonic Channel. For the female participants in this game, the difference in their profile arts is that they are wearing their respective winter outfits.
 * Bowser's profile artwork is exactly the same as his artwork for New Super Mario Bros. Wii, which came almost a month after this game.
 * An app based on this game was released for the iOS (iPhone/iTouch), but only features Sonic characters and thus is named simply Sonic at the Olympic Winter Games.