I remember those; a kid in our neighborhood had one. I made do with a Schwinn Typhoon handed down from my oldest brother. I got a speedometer for it that went to 50 mph, and could peg it on one of the hills nearby. Blind intersection at the bottom, and then smoke the coaster brake trying to get stopped in the (also downhill) quarter mile or so before the highway. It’s a wonder any of us lived.
We would get Crazy with playing cards
and clothes pins...
Those were the days!
Risk of injury made playing ever more fun. Fifty mph on a coaster bike? Balls for fifty.