Stickman Downhill funktioniert nicht

Additionally, compete with your friends at special ranked tournament cups, share your gameplay videos and watch others people best ride. • From the makers of various top hits like Stickman Downhill, Stickman Soccer, Stick Stunt Biker, Stickman Cliff Diving, Stickman Base Jumper, Rope'n'Fly and more... 
• Downhill tracks, Trial tracks, Race tracks, Free ride tracks, etc. • Different amazing atmospheric locations, from forest to mountains, day and night, etc.  Choose from more than 15 different bikes, including Dirt Bikes, Race Bikes, Quads, Tanks and even kerosine powered rocket turbine bikes as well as nuclear powered race machines.  Bike in various different locations, ranging from tracks in deep forest to mountain tracks high up in the air.  Stickman Downhill - Motocross, the sequel to the number #1 downhill game with more than 10 million players.  Experience ultra realistic and fast paced action packed motocross downhill biking in stunning environments.  No in-app purchase is required, you can play and complete the entire game without having to purchase anything.  Every bike is designed by hand with its own physics, handling and realistic sounds.  Thank you very much for all your support and interest in our games!  We would love to hear your suggestions!