Snow Rider

Snow Rider (スノーライダー) is a enemy Reploid from Mega Man X3 that shoots lasers. It's only found in Blizzard Buffalo's stage. 

Snow Slider
Snow Slider (スノースライダー) is a Snow Rider using a snowmobile. 

Trivia

 * It's possible to be permanently frozen right outside of Blizzard Buffalo's lair by a Snow Slider. If it freezes you in the middle of the icy slope right before the building, X will be frozen and unable to break free. The Snow Slider won't be able to damage him and set him free because the AI prevents it to travel past slopes.