Driving a car at speed over 300 km/h does get your adrenalin to its max, but is speed the only thing to boost your adrenalin to its limits? What about stairs, hills, woods, obstacles, jumping stunts, and all of that on a bike or a motor bike… What do you thing now? Speed does its share, but being able to jump high up in the air, doing wild jumps, and astonishing moves, like zik-zak, back flip, superman, and other neat tricks, well it doesn’t leave you cold! But that’s just one of many stunts. But what about skill testing like mountain bike races, being able to go on difficult tracks, and finishing challenges. One of my favorites is driving down a mountain at very high speed, and still being able to control your bike the way you want it to. The games itself vary from what you are looking for… There are bunch of 2D online bike games where you do lots of stunts on a bike, and test your knowledge and skills on a bike, but what about street races? Mountains and forest paths are a league for itself, but this kind of games are especially wanted for those who want to try something else besides pure speed. There is nothing better than using ‘your own’ strength for bike races and endurance, or skill testing and courage for motor bike races with continuous acceleration. Add to this top 3D graphics with genuine surroundings of real places where this type of races or tests are happening, and you get direct adrenalin shoot in your body with just a little bit of imagination, it can get so real. Take your best shoot, surf the Web, find your challenge, and see if you are really up to it to master something that only the bravest can.