letter keys - movement (They are purposely VERY wonky) You have to get to the other side of the screen without dying. A new car is added every level, so it gets progressively harder. Every six levels there is a boss.
People on youtube - music PLAN FOR FULL RELEASE: -18 levels (done) -three bosses(1 to go) -18 different vehicles (done) -many varied locations (done) -story(almost done) -addictive gameplay (done) -bonus/secret level? Watch out for the sequel!