Odds of Getting In
You don't need to be talented to become an arcade worker, but you do need arcades to hire you.
There are millions of coin-operated arcade game machines out there in the world. (To be precise, slightly over two million.) But the majority of these are sitting abandoned in basements, covered in dust and cobwebs, because their owners don't care about arcade games, much less about getting in their cars and driving to an actual arcade.
In the United States, there are only 5,000 public-access game arcades, and that number is dropping every year. For you, this means there are fewer and fewer places that can hire you, no matter how awesome you are.
In other words, don't get your hopes up.