> it’s actually kind of hard to find really good American style pizza here
And when she was good, she was very, very good,
But when she was bad she was horrid
I have to admit Japan is weird like that. Food is either world class (when they "get it") or it's simply awful (when they don't). There's no good Thai in Tokyo, no good hamburgers, no good Mexican, not even much decent Italian (Saizeriya. Dear God). Not really even any good bread, if you like crusty sourdough.
There's a complicated calculus at work between what the market wants, its expectation when it gets it, and what it will pay. When those factors align you will get absolutely world class food. When they don't, for whatever reason, you get absolutely nonsensical garbage. The best Thai that I know of in Tokyo, a city of 30+ million people, I would equate to a 3rd rate strip mall takeout place in my home country. And yet the crappiest 5-for-100¥ gyouza in Tokyo is better than any gyouza in Australia.
The market drives everything, and the japanese market knows nothing about pizza. I've felt your pain. Eat a lot when you get back home.
update: just noticed that you wanted ham and pineapple pizza. I withdraw my sympathetic remarks. I consider fish pizza an appropriate punishment