>>150268517
The MV black holes are explicitly described to be like actual black holes. The Dimension Tide black hole is "concentrated" using technobabble. Space Godzilla just came from a regular black hole. Void Ghidorah's are contentious since they're supposed to be portals as well, and I don't recall if any of the supplementary Godzilla Earth things mention them.
>>150268548
>>150268489
Didn't Marvel Godzilla step on Hercules?