Gigan. Decades ago, Godzilla and Rodan were a rather popular kaiju pairing. The duo worked together alongside Mothra to beat Ghidorah in Ghidorah, the Three-Headed Monster and reunited for a ...

Gigan, despite a cyborg arsenal, isn't invincible and has lost to Godzilla in two fights. Among Godzilla's rivals, only King Ghidorah could match his strength, but Godzilla still prevails due to ...