Shin Mazinger is really upping the stakes.
Dr. Hell deploys a 10km tall mecha. As a reminder, Mazinger Z is about 20m tall.
Kouji's desperate enough to consider to start considering just self-destructing over it.
But thing is it's also revealed that Mazinger Z has as much energy output as the sun itself. So if Kouji self-destructs that, he'll be vaporizing the Earth along him at minimum.