Adult book store is just a sex shop. Toys, porn, etc… Not much to do but shop your pervy heart out.
As for an adult arcade, expect ugly people and look out for random bodily fluids left behind. Sometimes a kinky couple will invite strangers to do things. What’s allowed and what goes on can be two different things. Adult arcades can be pretty gross and not for everyone.
One that I remember, it at least when I first realized it turned me on anyway, was when a woman and her girlfriend attempted to sexual assault me. I was able to get away but I was also crazy aroused.
I have a huge kink for CNC with a woman as the aggressor now.