[ToddF]

A little more towards the insane side of the spectrum...

I did a quick calculation comparing kinetic and potential energy. The numbers actually make this feasible.

Remember “Back to the Future”? If you put a 30 inch vertical hook on the back of your robot, and drove at full speed under the tower, the hook would catch on the lowest bar, and the robot would flip up high enough for you to catch the second bar. Then you release the lower bar hook and score 20 points. Unless the tower or the robot comes apart at impact…

You need a very fast robot and the starting height of the robot CG should be as high as possible. We think it would be ruled "unsafe" for competition, but it would be fun to prototype...