I'm sort of surprised at that
Iron Man came out in 2008, so they would have been just born around that time.
I was always under the impression that American superhero stuff was not very popular in Japan.
It's huge, the kids all have pencil cases with marvel logos and UNIQLO is always doing collaboration lines.
Anything Disney or Marvel and the kids are crazy about it. My girlfriend is much younger than me and she goes and sees pretty much every movie as soon as they come out, apart from the most recent ones according to her have been getting lousier after the most recent Avengers came out.
Kids are still into pretty cure and kamen rider etc., but once they hit the teens the American stuff becomes
cooler.
Manga seems to be more popular then anime, but they only really seem to follow the big trending series.
Korean TV-dramas and Kpop are enormously popular, but a lot of students still like Japanese music too.
When it comes to games they're all glued to their smartphones and are totally hooked on Gacha games. Especially fate and Genshin.
One of my old students said that she spends about $300 a month playing one of them.
Pokemon of course is still enormously popular. I did a quiz game with a class recently and asked them to tell me what colours a pikachu is and some of them didn't know what a pikachu looked like. Also one student said blue... he should probably get his eyes checked.
Most don't play any games on console, if they do it is on the switch or sometimes they have something at home from when their parents were younger, like a Nintendo 64 or a PS2 (which does double duty as the family DVD player). I've noticed that PC games have been getting pretty popular over the last few years, particularly Minecraft, Fortnite and Apex.