Master Jiggywiggy is a really helpful character in Banjo-Tooie. He is super helpful because he opens up the worlds for you by the help of the Crystal Jiggy. You can find Master Jiggywiggy in the Wooded Hollow in his temple that is gold and has jiggies engraved in it. You can't go into the temple unless you have a certain amount of jiggies. The temple is guarded by the Disciple of Jiggywiggy. You have to prove yourself before Master Jiggywiggy opens up a world for you, and the only way to do that is if you complete Jiggywiggy's Challenge Puzzles.