Rodan Saves Godzilla

Paralysed by the G-Crusher destroying his secondary brain, Godzilla will surely die unless something isn't done. Having heard Baby Godzilla's cries, Rodan, his adoptive brother, comes to rescue Godzilla, willingly allowing himself to be shot down by Mechagodzilla so he can land atop Godzilla's body. There, he sacrifices himself, giving Godzilla his energy and fading away so Godzilla can stand up and put down his mechanical double for good.

Example of:
Heroic Sacrifice