Godzilla and son, Rodan, Baragon, Mothra, Varan, Jet Jaguar, M.O.G.U.E.R.A., Gigan, King Ghidorah, Mechagodzilla, Megalon, Titanosaurus, and DESTROYAH!
Space Godzilla was cut because I didn't want too many bad guys and Biollante might be in it still kicking around ideas
King Kong, Zilla, Ultraman, and Gamera will not be into so no one over shadows Godzilla
Fluttershy is scared shitless of all the monsters but Mothra
Apple Bloom finds a watch that lets her control Jet Jaguar
we are to blame for why the monsters are lose in Equestria