Guffo

Guffo is a living can of Guff beans who resides in Cloud Cuckooland's trash can in Banjo-Tooie. When Kazooie enters alone, he is happy to have a guest for once. He is facing eviction due to an abominable amount of germs in his domicile, so he asks for Kazooie's help in getting rid of them. This leads to a minigame where Kazooie's objective is to defeat color-coded enemies using Wing Whack to reach a certain number of points. When Kazooie reaches the goal, Guffo rewards her with a Jiggy and a Cheato Page.

Banjo-Kazooie: Nuts & Bolts
"Rubbish Bin. Also known as the Trash Can. Home to a discarded can of beans named Guffo in Banjo-Tooie, who needed Kazooie's help in dealing with an unfortunate (if unsurprising) germ infestation."

- Banjoland description

In Banjo-Kazooie: Nuts & Bolts, Guffo's trash can is on display in Banjoland with other similar bean cans resembling him around it. A photo of him also appears in the same level.

Trivia

 * Guffo is made by "Chimps" producer, as can be seen in a blurred print at the top of his label.
 * The term 'guff' is British slang for passing gas. Hence Guffo's name as an empty baked beans can.
 * Many cans of Guff beans can be seen in the Prospector's Hut.
 * If Kazooie were to fire a Clockwork Kazooie Egg into the bottle of Jolly's Juice and exit through the hole and re-enter, Guffo will exclaim every once in a while, "I didn't see you enter through the front door! Please leave and enter properly.", although Kazooie herself doesn't actually leave the trash can. As this is the expected behavior when Banjo enters from the rear using the Shack Pack, it is apparently a bug in that the game assumes that anyone entering through the rear is Banjo.