Terrain twister is a toy by Hot Wheels. The online promo game was designed for Bell media as part of advertising campaign that ran on family.ca. The idea was to showcase all the cool features of the toy (it can drive on grass, snow, water and etc.) while getting kids to play the game and share their score with friends. The game phycics was built the way that the car would act differently on different terrains, which made the game more chalenging, unpredictable and interesting to play.