Morris Adler Elementary in Southfield, Michigan. Early to mid 1960's.
We used to play "kill the guy with the football." Wrong today, we always made sure the same one or two constantly-bullied kids had the ball so we could "kill" him/them. They were good sports about it, given that nobody liked them and they didn't have to choose to play. Later in life, during the early 80's, I regretted how we tread those one or two kids when one of them lived in my freshman dorm and wanted to be friends. He was cool and I apologized profusely.
Also played "Slaughter." We would line up with our backs to the brick wall and whoever caught the red ball thrown at them from like 15-20 feet away, would get to throw the next ball which if caught gave the catcher an opportunity to be the next thrower. We would throw the ball at each others' heads. There were some minor head injuries from this as the red ball wasn't full of air and you could really wail it.
Last, but not least, was dodge ball in the gym on the basketball court with volley balls. Getting hit could really hurt. Some times we were black and blue.
Some of this would not be allowed these days for good reasons, but we sure had fun.