You can't move Godzilla because he's stuck in the black zone.
Notice how at 0:31, for a split second, Godzilla turns green, which is Anguirus' colors. Hmm...
Appears on these pages
Godzilla: Monster of Monsters! (ゴジラ Gojira, lit. Godzilla) is a 1988 game developed by Compile...