It could be possible by using the super-speed suckertube trick found here: http://www.jazz2online.com/jcf/showthread.php?t=12448 or, if you don't want to read through all of it, here: http://www.jazz2online.com/jcf/showp...8&postcount=11

The player, because of the sheer speed he's travelling at, will stay 'balled up' for many seconds. He will unroll himself by jumping (or shooting, I *think*) while on the ground. He will stay balled up if you just walk left or right. You could keep him ball-shaped by not enabling a ground and adding a lot of suckertubes in the lvl and preventing him from touching the ground. This, however, cannot stop the player from buttstomping unless you add so many tubes that he'll just end up going around in circles. That's all I can add. I guess that the job of finding the anwer to your question, FS, lies in the hands of my apprentice (whoever posts next ;P).

EDIT: http://www.jazz2online.com/jcf/showp...1&postcount=12 <--- me telling about the long balled-up period. Also visit #jcstalk if you don't want to wait for an answer, FS (see my signature).