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The music that plays during the shooting sections of the Biathlon event in the DS version is 65 seconds long, but only half of it is actually heard in-game since the player only has 30 seconds to shoot each time.
The Cutting Room Floor article with full song:
https://tcrf.net/Mario_%26_Sonic_at_the_Olympic_Winter_Games_(Nintendo_DS)#Partially-Unused_Music
Biathlon event with shortened song:
https://www.youtube.com/watch?v=CNwAvRUx1sA
https://tcrf.net/Mario_%26_Sonic_at_the_Olympic_Winter_Games_(Nintendo_DS)#Partially-Unused_Music
Biathlon event with shortened song:
https://www.youtube.com/watch?v=CNwAvRUx1sA
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While a majority of the Sonic characters in the game are voiced by their 4Kids Entertainment voice actors at that time, Big the Cat and Omochao's voice clips are instead taken from Sonic Heroes and Sonic Adventure 2 respectively. These characters only appear in the DS version of the game, and since they use archival recordings, their voice actors Jon St. John and Lani Minella are credited in a separate section from the main Sega voice cast.
Big archival clips in Mario & Sonic at the Olympic Winter Games:
https://www.youtube.com/watch?v=O1Wn6x_SGOw
Omochao archival clips:
https://www.youtube.com/watch?v=KTvHac7R9CM
Big's Sonic Heroes voice clips:
https://www.youtube.com/watch?v=98hlQxanAnM
Omochao's Sonic Adventure 2 voice clips:
https://www.youtube.com/watch?v=bUipNJIXFQI
Credits of Wii version:
https://www.youtube.com/watch?v=SX92WzFqbc4#t=150s
Credits of DS version:
https://www.youtube.com/watch?v=oiW6BtvuIiI#t=6626s
Supplementary Behind the Voices article:
https://www.behindthevoiceactors.com/video-games/Mario-and-Sonic-at-the-Olympic-Winter-Games/
https://www.youtube.com/watch?v=O1Wn6x_SGOw
Omochao archival clips:
https://www.youtube.com/watch?v=KTvHac7R9CM
Big's Sonic Heroes voice clips:
https://www.youtube.com/watch?v=98hlQxanAnM
Omochao's Sonic Adventure 2 voice clips:
https://www.youtube.com/watch?v=bUipNJIXFQI
Credits of Wii version:
https://www.youtube.com/watch?v=SX92WzFqbc4#t=150s
Credits of DS version:
https://www.youtube.com/watch?v=oiW6BtvuIiI#t=6626s
Supplementary Behind the Voices article:
https://www.behindthevoiceactors.com/video-games/Mario-and-Sonic-at-the-Olympic-Winter-Games/
Related Games
Mario & Sonic at the Olympic Games Tokyo 2020
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Mario & Sonic at the Olympic Winter Games
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Mario & Sonic at the Rio 2016 Olympic Games
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