This is what I've got so far

Good King Moggle Mog
Good King Mog
Lord of all the land

Good King Moggle Mog
Good King Mog
Rules with iron hand

Good King Moggle Mog
Good King Mog
Leads them right and true

Good King Moggle Mog
Good King Mog
?

Kupta Kapa will clip your tuft
Split your hairs and ruffle your fluff

Kupti Koop will throw you for a loop
? is to follow his troop

Kupli Kipp is sly and sweet
He'll tickle your nose then tickle your feet

?
?

Pukla Puki plays with fire
Bodies are burning on her pyre

Puksi Piko likes it when he's big
To sing a little song and dance a little jig

Pukna Pako shivs and shanks
She'll stick you in the gut and give you bellyaches

? and standing tall
With the biggest moogle of them all

Good King Moggle Mog
Good King Mog
Kind and noble lord (hear, hear!)

Don't you know when you lower your guard
We're gonna put you to the sword

Good King Moggle Mog
Good King Mog
His judgment you will know

Good King Moggle Mog
Good King Mog
What do you decree?
What do you decree?
What do you decree?

Off with their heads!

It's not perfect, and couple lines I just can't understand. :<

Official lyrics please!!