Sonic: The Mountain World

Sonic: The Mountain World is a 2023 adventure game created by Sega, Paramount, Trey Parker and Matt Stone, and it takes place in a Colorado town, South Park. 
== Voice cast ==
Trey Parker: Stan Marsh, Eric Cartman
Matt Stone: Kenny McCormick, Kyle Broflovski, Butters Scotch
Roger Craig Smith: Sonic the Hedgehog
Colleen O'Shaughnessey: Miles 'Tails' Prower
Idrissa Elba: Knuckles the Echidna
Mike Pollock: Dr. Eggman
Issac Hayes: Chef
April Stewart: Liane Cartman, Wendy Testaburger
Mona Marshall: Sheila Broflovsk
== Trivia ==
* Trey Park and Matt Stone are the creators of South Park.
* This is the first game that collaborated with Sega.
* This game will be available in Japan, USA, and Canada.
* There are 2 versions of the game, the 18+ one and the family-friendly one.