Finally finished the Desert Tracks game. I had originally planned to have 4 tracks, but the saving problem I was having seemed to be linked to making the ingame scene too long. Which of course meant I could not make longer tracks with more variation. I figured it would be best to keep it to 2 different tracks rather than 4 tracks that are basically the same.
For anyone interested in playing the game, it is live at the moment on Kongregate Here.