Anguirus wasn’t a fair fighter. He leaped on Godzilla from behind, letting
out an enormous howl. Using the sharp spikes on his head, he turned on
Godzilla, furiously trying to hurt him.
Godzilla hadn’t anticipated this attack, but he managed to stand up
straight, growing even more angry in the process. A fierce scuffle ensued.

Godzilla Raids Again: Godzilla in Osaka
The Escaped Prisoners