How to beat 6000 feet : First, buy and max all. Then fly with a air resistance of 3%(so that you gain altitude, up, not down). Use your rocket till' u are at 200 in "speed". When u sink to 175, use your rockets and get back up to 200, repeat till' you run out of fuel, then let it glide.. PLEASE KEEP THIS COMMENT ALIVE!!!
REALLY boring game.. If it had a gameplay like Final Fantasy it would have been MUCH better.. I mean.. What's fun about clicking a red sircle then battle a lame turn-based battle with boring effects, but could have become something 1/5