If you like big American 4x4 modified monster trucks with big wheels and powerful engines, and you are looking online for a new challenge. Then try this new exclusive driving and jumping monster truck game called Nitro 4x4 jumper games. In Nitro 4x4 jumper you own a big truck and your challenge it's to modified the engine and wheels to be able to race and jump over the holes in each level. Use arrow keys to drive and balance the truck and buy nitro from the garage to have the bottle of nitro filled all the time. Always buy first nitro and then upgrade the truck. If you do not buy nitro you can not pass the level. You need to speed up on ramps and boost your heavy wheeler to be able to jump over the holes and obstacles and land safely at the finish line. There are 12 intense and insane levels that will make you work for each level. Collect money and upgrade four your American monster truck to keep up with the increasing difficulty of levels If you finish the game and your driving skills are improve, and you are looking for a better challenge, try other similar monster truck games here on vitalitygames.com. Also you can try the best free online unity 3D truck and monster truck games. Good luck and have fun!