I actually went on to try and dodge people and still hit around 14, so that's a shame.
This was done pretty well, though the concept of running over people on a dirt bike is not unique, nor did it age well. I loved the graphics over everything else, and the music and sounds were all a nice touch together.
Noticed that there was only one end screen message, which is "good job." I do feel that there could've been different phrases with different scores.