Use the SPACE key to jump over the road spikes.YOU WILL GET SO THE ROAD SPIKES WILL COME ASTER, BUT YOU COVER MORE DISTANCE. Try and beat the record. You will know if you beat it because it'll cover most of the screen.
I took the spikes out. The Instructions above are made by mugicha (the maker of the original game) and I had no involvement in the actual creation of the game. (The link to the original project is the below.)