1087 ft - Here's how its done:
few tips:
try to always press left arrow to fly over zombies
use turbo wisely, aka save it for when you start going up the hill
and definitely use at the last bit of the hill before you hit the boxes
should be able to get all upgrades by 3rd day,
day 1 -
full transmition
full engine
as much gas as possible
day 2 -
buy full tank
turbo and as much fuel for it
day 3 -
all turbo and the rest gun
+ if this helps guys
HINT: NOT SHOOTING GIVES YOU A 2500$ bonus BUT IF YOU SHOOT ONE TIME OR MORE AT BIG BOSS SHIPS W/O MISSING IT WILL GIVE YOU MORE MONEY DEPENDING ON LEVEL THAN JUST THE 2500$
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