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Scorpion451
(Edited uphill both ways)
Is there a trope for when a game's main story is super serious, but the sidequests are goofy and silly?
Yakuza may be the king of this trope; the main storyline is a gritty, hard-hitting crime epoch while sidequests will have your stern-faced protagonists buying teaching mild-mannered rock musicians how to be badasses, or infiltrating cults with bizarre rituals, or getting high on experimental drugs.