Banjo-Tooie worlds in order and how many Jiggies each needs
All nine Banjo-Tooie worlds in order with the Jiggy cost to open each at Jiggywiggy's Temple, plus each world's boss.
Original 2000 Nintendo 64 release. The 2009 Xbox Live Arcade version and later Xbox and Nintendo Switch Online releases are outside the edition scope; world screenshots that appear to come from the widescreen re-release are labelled.
Illustrated reference

Mayahem Temple
1 Jiggy. A Mayan-style jungle with Humba's Stony form and the Code Chamber; boss Targitzan.
Mayahem Temple; widescreen capture labelled by its source; the aspect ratio suggests the 2009 Xbox Live Arcade re-release rather than the N64 original.

Glitter Gulch Mine
4 Jiggies. Mine tunnels and Chuffy the train; the Detonator form; boss Old King Coal.
Glitter Gulch Mine; widescreen capture labelled by its source; the aspect ratio suggests the 2009 Xbox Live Arcade re-release rather than the N64 original.

Witchyworld
8 Jiggies. Grunty's theme park with rides needing tickets and power; the Van form; boss Mr. Patch.
Witchyworld; widescreen capture labelled by its source; the aspect ratio suggests the 2009 Xbox Live Arcade re-release rather than the N64 original.

Jolly Roger's Lagoon
14 Jiggies. Mostly underwater, with Atlantis below the town; the Submarine form; boss Lord Woo Fak Fak.
Jolly Roger's Lagoon; widescreen capture labelled by its source; the aspect ratio suggests the 2009 Xbox Live Arcade re-release rather than the N64 original.

Terrydactyland
20 Jiggies. Prehistoric land of dinosaurs; the Baby T-Rex form; boss Terry.
Terrydactyland; widescreen capture labelled by its source; the aspect ratio suggests the 2009 Xbox Live Arcade re-release rather than the N64 original.

Grunty Industries
28 Jiggies. A polluted multi-floor factory; the Washing Machine form; boss Weldar.
Grunty Industries; widescreen capture labelled by its source; the aspect ratio suggests the 2009 Xbox Live Arcade re-release rather than the N64 original.

Hailfire Peaks
36 Jiggies. Linked fire and ice sides; the Snowball form; bosses Chilli Billi and Chilly Willy.
Hailfire Peaks; widescreen capture labelled by its source; the aspect ratio suggests the 2009 Xbox Live Arcade re-release rather than the N64 original.

Cloud Cuckooland
45 Jiggies. A world above the clouds; the Bee form; boss Mingy Jongo.
Cloud Cuckooland; widescreen capture labelled by its source; the aspect ratio suggests the 2009 Xbox Live Arcade re-release rather than the N64 original.

Cauldron Keep
55 Jiggies to open; 70 for the Tower of Tragedy quiz and HAG 1 finale.
Cauldron Keep, Gruntilda's tower.
Jiggies needed for each world

Mayahem Temple needs 1 Jiggy, Glitter Gulch Mine 4, Witchyworld 8, Jolly Roger's Lagoon 14, Terrydactyland 20, Grunty Industries 28, Hailfire Peaks 36, Cloud Cuckooland 45 and Cauldron Keep 55. Reaching the final HAG 1 battle needs 70 Jiggies.
How many Jiggies are there?

There are 90 Jiggies. Nine come from rescuing complete Jinjo families, whose 45 Jinjos are scattered across the worlds.
World bosses
Targitzan rules Mayahem Temple, Old King Coal Glitter Gulch Mine, Mr. Patch Witchyworld, Lord Woo Fak Fak Jolly Roger's Lagoon, Terry Terrydactyland, Weldar Grunty Industries, Chilli Billi and Chilly Willy Hailfire Peaks, and Mingy Jongo Cloud Cuckooland.
Cloud Cuckooland can be skipped on the way to the finale because 70 Jiggies are reachable from the other worlds, but it holds Jiggies needed for 100%.
Picture details
Game artwork belongs to its respective rights holders.
