How much does someone who built the foundations of Pokémon Go still play the game, eight years on? It's the first question I ask Ed Wu, senior vice president of Pokémon Go, as we set off on a walk together around a leafy London park — our phones in hand, Pokémon Go open. «I spend as much of my time beating up the game as possible,» he laughs. This is often using work-in-progress beta builds, he admits, to ensure upcoming features are bug-tested. But he still plays his «official» main account when he can — and it's clearly a source of pride that his was the first ever user account — or one of the first, he can't quite recall — registered on Pokémon Go's live server back at launch in the summer of 2016.