There have been many mechas over the years, but only a few became famous.
MECHA ULTRAMAN
Jet Jaguar I'm not Ultraman!
MECHA KING KONG
MECHAGODZILLA
(Mecha King Kong rip-off)
MECHA KING GHIDORAH
METAL SONIC
MECHAGODZILLA 2
(lame name)
MECHA MOGUERA
(technically a remake of Moguera)
Cyber-Zilla
(no one cares about him)
Kiryu
But now, a new mecha has arrived. Prepare yourself Godzilla.
Coming in theaters shortly after Armageddon, GODZILLA VS MECHA GEORGE BUSH. He still hasn't given up his plans for presidency, his motive, become the president of MEXICO!!!