Crazy Taxi is the definition of "underrated gem". Often overlooked when it comes to most "best of" lists in gaming, it was a game that came along and made it's way with a niche idea no other game had used before. This weird idea of being a crazy cab driver spawned successful sequels, spin-offs, and was likely one of the few reasons people held on to their Sega Dreamcast.
While few people who never played it remember it today, those who have will definitely appreciate this mini-documentary on the franchise's history. Enjoy!