Godzilla, Godzilla Jr., Mothra, & Battra as they will appear in my Godzilla/Pacific Rim crossover
Godzilla - Same as Endgame, Season 2, but is now darker in color, his eyes are more cat-like, and the scar on his chest is now more faint.
Godzilla Jr. - Colors are a homage to Godzilla 2000. he won't appear until the end of the final episode.
Mothra - Colors are a homage to Mothra Leo (particularly his rainbow form).
Battra - Not much change, but has darker colors and different wing patterns.