I have not been hurt moving any pinball machines, but owning a vending business, I have had a vending machine fall on my trying to move it using an appliance dolly. I now use piano Dollies that lift straight up.

Ok while reading these, in the back of my head this little voice pops up and say "It's all fun and games until someone gets hurt"
That would have been either Grandma or Mom says that when we were kids.
Just had to chuckle a little.