Here's a quick calc I did for SpaceGodzilla's durability going his relativistic speed feat, going off of
this:
Distance traveled by Moguera = 1 AU (Or 149,597,870,700 meters)
Time frame = 12 minutes, 34 seconds (Or 754 seconds)
149,597,870,700 / 754 = 198,405,664 meters per second (Or 66.1810058% the speed of light)
Flying form Spacegodzilla's mass = 720,000 metric tons (Or 720,000,000 kilograms)
Moguera's mass = 160,000 metric tons (Or 160,000,000 kilograms)
Inputting these figures into the
relativistic kinetic energy calculator, we get:
Moguera's kinetic energy =
4.798E+24 joules or 1.14674952 petatons of TNT equivalent
SpaceGodzilla's kinetic energy = 2.159E+25 joules or 5.16013384 petatons of TNT equivalent
For comparison, the site's
Attack Potency chart lists the maximum energy for
Large Country level and/or minimum energy for
Continent level at
5.565E+24 joules or 1.33006692 petatons of TNT equivalent.
I also found this calc which lists the figures even higher:
Mougera's kinetic energy = 1.05086558E+26 joules or 25.1162902 petatons of TNT equivalent
SpaceGodzilla's kinetic energy = 4.72889512E+26 joules or 113.023306 petatons of TNT equivalent
Keep in mind that neither was harmed by the collision, with, as KaiserWombat puts it "zero damage inflicted on the latter while the former only received minor trauma due to sensitive circuitry." Pretty casual stuff.
Fits well with the energy ouput of the meteor Battra was going to destroy, I'd say.