Go for better score. Travel the longest distance, get the highest score, you can.
Tired of the helicopter's design? Don't worry, you can choose one of the 16 characters, that you can control in the game.
You can lift up helicopter (or whatever else) by simple touching on the screen. Try to avoid side walls and also wall that will be generated randomly with randomly moving direction and speed.
Less than 1000 meters - wall can/can't move, level of speed 1 - 3
Less than 2000 meters - wall move, level of speed 4 - 6
More than 2000 meters - wall move, level of speed 5 - 10
Try to beat your last score, show yourself.