Flibleene,try to avoid anything that is flying(helicopter,plane,satelite and ufo) and try to use the rocket up to hitting 500(because that is the max) and wait until it get to 400 to use again to get 15000 ft.
SoakerMan123, that hapneed with me too. i tested dont making nothing on consistancy. later the consistancy part of the graphic gets on max and you get 0 score and level 11.
this inst a glitch, this is a bug.
 "GeoSketch"){kind=icon}
 "Fly Hard"){kind=icon}
 "Cursor Catalog 2"){kind=icon}
 "The Mouse 101"){kind=icon}
 "Drag Box"){kind=icon}
 "music euphoria"){kind=icon}
 "Obey the Game"){kind=icon}