A lot of people have stated their tips already on hard already, but one thing a lot of them forgot is that you can restart each day. What I did was max engine, wheel, fwd support, and as much fuel as I could. On day one, I kept restarting until I made it up the hill with the two zombies on it (around 760 ft). One day two, I maxed fuel, and did up to the $2400 upgrade on the gun and put the rest into boost. I kept restarting until I hit the boxes and got around $14,000. With that, I maxed boost and put the rest into gun. If I didn't clear all the boxes on the top of the hill/hit 2,014, I would immediately hit Esc and restart the race.
Does this game give a blank screen after you hit start for anyone else? I thought I've played this before, but it doesn't seem to be working for me right now
It actually seems like there is a way to get stuck in the game. If you pick up the sponge on the last part on the third fire, you pick up the sponge and you can't click anything. The only way to get back seems to be to reload the page starting the game over. So having a reset button would be nice for that part. ;)