The Barem (ベーレム Bēremu) are a pollution-byproduct kaiju created by Toho that first appeared in the 1997 Toho film, Rebirth of Mothra II.
Barem
Best ‘90s Movie Villain
for Best ‘90s Movie Villain in Best and Worst of Villains
Suggested by Anicomicgeek
Which villain is very evil, and which ones are wimp villains.