There was a guy at Pinfest who was in a wheelchair (and had no legs) and he was definitely playing. He and his chair weren't under the machine, but AFAIK was just in front of it and could reach and see. Saying this seriously, perhaps the lack of limbs provided the ability for him to get close enough (very close) and still play. Obviously this does not apply to all handicapped people. Neat idea, phil-lee.
It was nice to see people from all areas of life and abilities being able to share the common love, and play, of pinball.