The Last game I played was Splatoon 3. It really depends on a few things, Am I an Inkling/Octoling? Do I speak the language? Where am I? In Splatoon lore all humans died in mass floods, so if I was still human I would probably be studied. Also, if I’m in the middle of the ocean I would be screwed either way. Assuming that I am in a major city or at least near civilization, and I am an Inkling/Octoling, and I speak the language, I would be fine. As for what I would do, I would sign up to work at Grizco, and once I have enough money buy a gun and participate in turf wars to gain money, eventually buying an appartment.
I’d be a Starfleet Fleet Admiral in 2410, with a bunch of very OP starships under my command, so that would be pretty damn sweet!
You have to realize that sto with its “to boldly kill, once again, what too many have killed before” is actually the mirror universe. So it would be only time until someone with more ships will take care of you.
Maybe not so sweet after all…