Reading this thread makes me wonder if there were any arcades that were not sleezy or sketchy. The ones at big shopping malls seemed the cleanest and safest to be, but the arcades at plazas, smaller malls, standalone arcades, and hell, even convenience stores, thats where you had to be on your toes a bit more. I had enough common sense to avoid any confrontations. The worse I ever saw was somebody punch the screen after I beat them in KOF. But there was also other stuff that went on at arcades you had to consider; people got their stuff stolen if they didn't keep an eye on it (school bags were vulnerable), and a guy even asked me if I had drugs once.
As for the actual games themselves, I only remember a couple of things really:
- don't play cheap (overuse of throws, sweeps, etc.)
- give mercy to those that ask for it. People literally asked for mercy if you won the first round. I hated this because just because you won the first round did not mean you were better than your opponent, yet I rarely saw someone deny a mercy request.
I used to go to an arcade that had table soccer and pool tables as well, so some rules for those:
- don't shake the table soccer table
- don't fucking spin, if spinning is allowed, that is a controlled spin
- for pool, loser pays