Banjo Tooie is an excellent game, if you treat it like an pseudo open-world adventure game with platforming, rather than a pure platformer.
The brilliance of the game comes from how the worlds are linked together; some Jiggies are not accessible until you do something in another world first.
Want all the Jiggies in World 8? Better thoroughly explore World 2 first. Want to even enter World 6? Go back to 5 and look around. It makes the Isle O' Hags feel like a place, rather than a hub world, and it's still pretty unique to this day.