May not technically be Banjo Threeie, but it's the closest I can get! : r/BanjoKazooie
Review - Banjo-Kazooie (Nintendo 64) - Eyes on Nintendo
Facts about Banjo-Kazooie 🪺 on Twitter: "There was never a #BanjoKazooie game planned for the Nintendo GameCube. The "Banjo-Threeie" footage from SpaceWorld 2000 was a tech demo. https://t.co/3vZW7UnxiQ" / Twitter
Banjo-Kazooie: Nuts & Bolts - Bundle Version | Konsolenbude.de: Spiele, Konsolen und Zubehör
Banjo Kazooie: Complete History | MojoPlays | Articles on WatchMojo.com
Banjo-Threeie Trailer Is The Banjo-Kazooie Sequel We'll (Probably) Never See
Banjo - Kazooie : Nuts & Bolts für XBOX 360 in Hessen - Immenhausen | X-Box Spiele gebraucht kaufen | eBay Kleinanzeigen
Gameboy Advance CIB Banjo Kazooie Gruntys Rache in Nordrhein-Westfalen - Bornheim | Nintendo Spiele gebraucht kaufen | eBay Kleinanzeigen
Banjo-Kazooie -Nintendo 64 - Retro Gaming Crew
Banjo-Threeie (lost build of cancelled sequel to platformer game series; existence unconfirmed; early 2000s) - The Lost Media Wiki