I have had some trouble with this level. In the area where you build 2 speeders I have lost the smaller one. Once I went up the ramp to the gold barrier, then it went over, somewhere to the left (?), and disappeared. Once it disappeared it didn't come back. My boys said they ran it over the edge a few times and it didn't come back one time. We had to quit out of the level and start over a couple of times because we lost the speeder. Anyone else have this problem?