Cheato

Cheato is Gruntilda's spellbook. He is found in Banjo-Kazooie, Banjo-Tooie and Banjo-Pilot. He is responsible for giving Banjo Cheat Codes and in Pilot gaining extra features.

Banjo-Kazooie
Cheato in Banjo-Kazooie gives you three cheat codes: BLUE EGGS, RED FEATHERS, and GOLD FEATHERS. He will give these to Banjo if you find him, they can only be activated once found.
 * BLUE EGGS - Near the Freezeezy Peak puzzle, enter the tunnel as the crocodile AFTER the Ice block had been destroyed.
 * RED FEATHERS - In the lava room, follow the small winding path to a small tunnel as the pumpkin.
 * GOLD FEATHERS - In the Rusty Bucket Bay entrance room, raise the water level to 3 and then make it to the alcove before time runs out.

Banjo-Tooie
Gruntilda has carried out her threat of ripping out his pages for giving cheats to Banjo and Kazooie cheats in the previous game, find his missing pages and return them to him and he'll give you more cheat codes. For every five pages that are found, Cheato will give Banjo and Kazooie one cheat. The cheats can only be activated in the Code Room of Mayahem Temple.

One strange thing that ought to be noted is how exactly Gruntilda ripped Cheato's pages out. She was trapped under a boulder for two years and at the beginning of Banjo-Tooie she left Spiral Mountain without even visiting her Lair (where Cheato resides). Perhaps the most plausible explanation is that she had Klungo rip Cheato's pages out for her.

Banjo-Kazooie: Nuts & Bolts
Cheato appears in Banjoland as an exhibit.

Cheato