The instructions for this game are included within. Mike Ploor sent me a Powerpoint game and I ported it to the DS.
I did it in the car, it took around 45 minutes to create & perfect it. The Source is also attached as a Pack'N'Go for those who are interested. There are collisions, transitions, recursive movement, variables etc.
You can design more levels if you like using the one included level graphics. Send them to me and I will add them. The logic is real simple.