The first Arrow button steer game in this series, press space to change the track difficulty. touch the edge, and you go to the start. Tracks with blue backgrounds are from the original. The ones with red backgrounds are from the second. Yellow ones are from the third. Green ones are from the fourth. The purple ones are from the fifth, and the teal ones are the new ones. They are more of a mixed bag, some easier, some harder. But, still just as fun! It still is a good time killer, too.