Why did you decide to have 151 Pokémon?
Sugimori: At first, the game was more RPG-like. It was only in the middle of development that the goal of the game became completing your Pokédex. That’s when memory capacity and deciding on a good number of characters became an issue. We actually wanted to have more. We designed around 1.5 times more characters we actually used.
Why did the game change from an RPG to one where your goal was to complete your Pokédex?
Sugimori: When we were writing the text for the Pokédex, we started talking about how fun it was to collect Pokémon. We hadn’t wanted to do a fantasy RPG from the start. We felt a story about a boy travelling to fill up his Pokédex was more appropriate for modern times than a tale of a hero battling an evil villain.