i noticed that whenever a player whos colour under their name is black, the game jams and the time starts rising after it gets to zero. Then you have to leave lobby or refresh the page and this needs to be sorted out!
as soon as you get high enough rockets just launch your plane vertically into the air and boost until you reach the purple stars, they give more that normal stars and give you lots of money quickly
to get over 50,0000 i got excellant ramp speed with the top rocket, boosted as high as i could whilst constantly doing up-and-outs and then did two flips in air, when on ground do as many pole vaults with the bat as you can and do more up-and-outs inbetween then to multiply your score. I also had a sombraro and three homies