Play uphill rush 8 for free.almost 12 years ago the first uphill rush launched as a flash game. over 1 billion gameplays later, the 8th edition in html5 is now here. and it's better than ever! be prepared for a whole new world of watersliding rollercoaster fun! 20 levels, 32 vehicles and 67 new outfits for you to play and collect. the uphill rush series is not only a success on web.