Character: spacegodzilla
Spacegodzilla is a clone of Godzilla with large crystals growing on him who shows up one day and kidnaps Godzilla Junior. While the monster has no definitive origin, the human characters in 1994's Godzilla vs. Spacegodzilla theorize that Godzilla's cells got thrown into space, got flung into a black hole, combined with crystalline organisms in the black hole, getting tossed back out of a white hole, and then grew into a Godzilla clone by feeding off the energy from exploding stars.
Yes, that's the actual conclusion they reach.
The following tags are aliased to this tag: astrogodzilla, astro_godzilla, crystal_godzilla, space_godzilla, crystalgodzilla (learn more).
This tag implicates godzilla_(series) (learn more).