I can't see how the kid could have climbed in via the prize door. I wonder if anyone played the machine, trying to win him for a dollar?
Just watch these examples.
https://www.youtube.com/watch?v=_MxcUlJZlp8
https://www.youtube.com/watch?v=4cGwumNaccM
https://www.youtube.com/watch?v=Qa0ROnznKLs
https://www.youtube.com/watch?v=zIhJIZf1dtg
https://www.youtube.com/watch?v=zIhJIZf1dtg
https://www.youtube.com/watch?v=mJ-lbNFL_5Q
https://www.youtube.com/watch?v=A1ym9c3cuKs
This isn’t the first time a kid has done this, it is fairly common.
I suspect each of these stories (there have been some big kids inside them in the English version of these stories) are publicity stunts. I’ve never read of a single lawsuit against the business or the company that makes the machines.