The "challenge" of original games is a great motivator.
Game Freak is best known around the world as the Pokémon developer, but it also works on other projects from time to time.
In a recent interview with VGC, Game Freak's Masafumi Saito spoke about how beneficial it was to the Japanese company to create "original games" - describing it as a great challenge, a great motivator for creators, and mentioning how "significant" it was in terms of growth:
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