Little Big Mecha-King Ghidorah (メカキングギドラ, Meka Kingu Gidora) is the Little Big Planet counterpart of Mecha-King Ghidorah. His costume can be made in the Godzilla Kaiju Costume Pack. He is part of the Terror Trio, the toughest one in fact. In the LBP Universe, he is programed to be evil and follow the Vortaak's commands. He was kept in a Kaiju Battle Arena Chamber. His pals are Mechagodzilla 4000 and Mecha-Gigan.
Big Mecha-King Ghidorah is a more closer related version of Mecha-King Ghidorah. It appears only in The All-Out Attack Part Three. It was made out of King Ghidorah's remains. When Sackboy comes to MKG's chamber, he breaks the floor and falls to another chamber with an old MKG mechanized head, and some Anti-Projectile Scanner Glass in the only way out, with MKG looking in. Mecha-King Ghidorah and the Vortaak Mothership are shot down while vulnerable by Godzilla 2012.