Thx for your review my good sir!
Well...the Backgrounds were all transparent and i also told the coders to change the sprites to point(no filter) but it didnt work.
Actually you can play further...if you look at the description, there is a foreshadow...
if you remove the second last rock, the car will stop...and then you can use the last cone to move the car out and break the game(the game goes "out of control")