Mechagodzilla

Mechagodzilla (メカゴジラ, Mekagojira?) is a fictional character from various films in the Godzilla series, introduced in Godzilla vs. Mechagodzilla (1974). He is Godzilla's mechanical doppelgänger and one of the most popular Toho kaiju. Mechagodzilla is also recognized as one of Godzilla's most powerful enemies (all iterations have at one point or another come very close to killing the King of the Monsters).