Mecha-King Ghidorah (メカキングギドラ )

Made of PVC - 150mm Tall - Marked ©1994 Toho Co LTD Made in China ©1994 Trendmaster

Godzilla King of the Monsters Figure

He came in the set 'Godzilla King of the Monsters' Magic Rocks by Crafthouse in 1995
Made of Hard Plastic - 90mm Tall - Unmarked

Thanks to Devlin Thompson for help identifying this.

Bootleg Godzilla

Made of Rubbery Plastic - 110mm Tall - Marked 'Made in China B'

Bootleg Godzilla Key Chain Figure

Made of Rubbery Plastic - 65mm Tall - No Markings