Gametips:

If you have any difficulties jumping the 2nd bridge to the 3rd island, get a fast
car like the banshee or infurnus and dont put any flying cheat on just speed all
the way till you get right to the end of the broken part of the bridge and once
you get there just before you fall into the water press (Esc) quickly, and when
your in the game menu type in CHITTYCHITTYBB and keep your hand on accelerate
and press (Esc) to go back to the game and watch your car fly like a rocket.

If you have any difficulties trying to get the DODO flying take it to the take
off road, keep your hand Num 6 to turn the turret down and drive on the road.
Once you see sparkes let go of NUM 6 but press it every 2secs to keep the DODO
balanced. (My best time is 11mins and 36secs) try beat that.