Dirt Bike 4 is a sport game on www.flash-game.net in which you will experience a breathtaking challenge in a nearly collapsed building and under other conditions. A red motorbike is placed on the top of an uncompleted mansion. You wear a blue sport suit and a white helmet. Use arrow keys “up” and “down” to move forward and backward and press “left” and “right” keys to lean your body in order to keep balance. Your goal is to complete all the levels in the shortest possible time, without falling off your bike. The shorter your time, the higher your score; the game starts in a night with several stars and a moon. In the far distance, you can see many other uncompleted buildings and cranes. When you begin to ride your motorbike, you should operate the buttons carefully and cautiously. Because it’s very easy to fall off the bike, or crash it, or fall down to the ground, you can not pass each level easily. It’s really a challenging game. Don’t hesitate. Play it now.