As a comparison, the fastest-selling first party launch worldwide in PlayStation history was last year's God of War: Ragnarök.
Scarlet / Violet almost doubled its sales (despite mixed reviews). Both at launch and 3 months later.
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As for Detective Pikachu, I remember it had weird marketing choices. They spent a lot of time and money targeting the "wrong" demographics (and taking families for granted). Like their insane placements at Coachella, for instance.