Used to play back in the day,but my back won't hold up to the twisting around anymore. Got banged up a couple times,but no serious injuries. I don't recall anyone getting hurt bad(no concussions or broken bones). We did have the rules that you needed a helmet,all bars had to be plugged,and no BMX pegs. Local TV station did a piece on our crew,and of course they came out the one time I was out sick.