Garu Garu was created by Belvera to help her take over the world. It was attacked by Fairy Mothra, but it managed to escape. It transported Belvera to Desghidorah's tomb, and was eventually destroyed by Fairy Mothra.
Garu Garu was rebuilt to help Belvera again, but it was only used for transport. It was modified with cannons, and fought Fairy Mothra once before escaping with Belvera.
Garu Garu 3 was built with more advanced weaponry, but it was damaged by King Ghidorah when it was pulled into his dome, but Belvera escaped. After Mothra Leo defeated King Ghidorah once and for all, Belvera arrived to witness Leo's transformation into Eternal Mothra, having repaired Garu Garu at some point during the battle. Afterwards, she left on the repaired Garu Garu once Moll was revived.