Fly the helicopter through the cave without crashing into the walls or the obstacles. Simple but yet very addictive. To control the helicopter press and hold the screen ascend, and release to descend. As in the classic copter game, but now in 3D! Press the back key to pause the game. Post your scores on Facebook or to the highscore lists, to compete with other players around the world. In Options, you can customize the tunnelgenerator and the helicopter behavior. Enjoy! 穿过山洞飞的直升机没有碰撞到墙壁或障碍物。简单却不失很容易上瘾。 为了控制直升机按住屏幕攀登，并松开下降。作为经典的直升机游戏，但现在在3D！ 按返回键暂停游戏。 上传你的分数在Facebook或到高分列表，与世界各地的其他玩家竞争。 在选项中，你可以自定义tunnelgenerator和直升机的行为。 享受！