Steep Slope Sliders a game that was made for the Sega Saturn and Sega Titan ST-V arcade system, published in 1997. It was developed by a collaboration of Victor Interactive Software, and the Cave Company and was published by Sega.
There are four different riders, seven different tracks, and twelve audio tracks available to begin with. Players were able to unlock up to 11 extra boarders (including an Alien, UFO and Penguin), plus some hidden tracks. For its time, Steep Slope Sliders had impressive graphics and fast game play.
Source: Wikipedia, "Steep Slope Sliders", available under the CC-BY-SA License.