Beside Pocket Mortys, this game is the most fun and addicting free game on the App Store. I love the way that their is careful physics involved with each individual bike, the way the levels are set up, and the fact that it is not pay-to play, and that instead of spending diamonds to refill fuel, you could also watch short ads, or just be patient, since it refills itself. However, my favorite thing about this game is the wide variety of beautiful levels, spread over vast, in-game continents. A word of advice to Ubisoft and RedLynx, keep up the great work and keep adding lots of new levels in future updates.