Complex sentence: Both series feature an investigative scientific team who call upon Godzilla as an ally, as well as making several homages to the Shōwa films and several antagonist monsters have been inspired by extant Toho creations.
Split into simpler sentences: Both series feature an investigative scientific team who call upon Godzilla as an ally, as well as making several homages to the Shōwa films. Several antagonist monsters in both series have been inspired by extant Toho creations.