Godzilla: Planet of the Monsters
The montage near the beginning is the best part, and frankly, would have made for a better movie. Way too much of this is just dry technical exposition and overwrought philosophizing.
Godzilla 2: City on the Edge of Battle
Better, but still not particularly good. They seem to love teasing actual Godzilla things but not delivering on them. Hell, the wall painting of Mothra doesn't even look anything like her, and we don't even get a good look at the original Mechagodzilla's remains.