"Amped: Freestyle Snowboarding (Tenku: Freestyle Snowboarding in Japan) is an Xbox exclusive snowboarding video game. It is the first of the Amped video game series.
Released during the Xbox's launch, Amped is a snowboarding game focused on the tricks, instead of the racing style of play given by Electronic Art's SSX which launched with the PlayStation 2 in the previous year. The success of Amped was solidified by the successful launch of the sequels, Amped 2 and Amped 3."
Source: Wikipedia, "Amped:_Freestyle_Snowboarding," available under the CC-BY-SA License.