From wikipedia:
Tony Hawk: Shred is a 2010 peripheral-based, motion-controlled skateboarding video game. It is part of the Tony Hawk series and the sequel to Tony Hawk: Ride.[1]
Shred introduces a snowboarding mode to the series as well as Avatar and Mii support on the Xbox 360 and Wii versions respectively. A "surfing" mode was worked on for the game, but was soon scrapped due to funds and short amount of time to work on it.