I just found out 2day. I was trying to take screenie and i fell from the tower in waverider. When i fell i accidently pressed print screen button and i nv had hp taken away. So i tested it again and it works 1000%!
Thank me if i helped you! *i think i did right now* Have fun Falling!
1st Go to jumping area where u want to jump
2nd Jump but while jumping press print screen button
3rd No hp taken away
It doesn't work- do step 2 again
Credits go to redhulk