EarthBound Syndrome
This happens when someone becomes a total freak over something nobody knew about until it came up again, and suddenly everyone's a fan, even though they never gave a damn before.
My cousin got obsessed with the old Pokémon games after seeing them in a Smash Bros. tournament. Now he wears a shirt that says ‘I choose you’ and yells at my cat.
My neighbor turned into a complete lunatic over the old Sonic games after they showed up in a new game. Now he wears a green hat and runs around screaming ‘Sonic boost!’
My friend turned into a full-blown maniac over the old Street Fighter games because they came up in a new game. Now he hits me with his fists every time I text him.