Pokémon started as a hugely successful game for Nintendo’s Gameboy nearly 30 years ago. Since then, it's become a billion-dollar global media brand.

Despite the firm's huge revenue, the Pokémon Company remains private. The firm doesn’t release its historical earnings figures, but some analysts estimate it has sold up to $150 billion worth of products, making it the world’s highest grossing media franchise.

Mariko Oi speaks to Pokémon Company president, Tsunekazu Ishihara, about the firm's successes over the years, and the challenges it faces - like counterfeits and the resale market.

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Presented and produced by Mariko Oi

(Picture: Pokemon CEO Tsunekazu Ishihara welcomes guests during the 2022 Pokémon World Championships at ExCel, London, UK. Credit: Getty Images)