King Caesar (Millennium) vs. Gamera (Heisei)
Location : Okinawa
Setting: Okinawa comes under attack by an recently dark turned Gamera who has now deemed humanity an threat to the earth prompting its guardian King Caesar to awaken to protect the land and people from the now corrupted guardian.
Don't have premises for these two requests but even then I thought they're too good to pass out on.
Frankenstein, Gaira and Sanda vs. Armored Titan, Colossal Titan and Rogue Titan
Location : The Wall
SpaceGodzilla, Krystalak and Obsidius vs. Iris and Gyaos (Heisei)
Location : Tokyo, JapanAdded in 4 hours 7 minutes 30 seconds:
Godzilla (Legendary) vs. Grand King Ghidorah
Location : Earth, Over 250 million years ago
Setting: Prequel to the MonsterVerse movies. The story behind how Godzilla's species along with most of life died out by the hands of an intergalactic menace that arrived during the end of the Permian period.
And its potential sequel depending if the writer has Godzilla (Legendary) wins.
Godzilla (Legendary), Mothra (Heisei) and Rodan (Heisei) vs. Grand King Ghidorah
Location : Earth, 10,000 years ago
Setting: Its been millions of years since Godzilla forced King Ghidorah into retreat back into the depths of space, unfortunately that day comes again when the golden three-headed dragon but much more powerful then before coming back to earth and begins laying waste on the planet which results in the extinction of the Ice Age megafauna only this time not only does Godzilla interfere again but also gains help from two other monsters in the process.
With the sequel the writer could even have it end with the early ancestors of ours having witnessed the intense battle and making those cave paintings shown in the post-credits of K:SI. Added in 15 hours 2 minutes 13 seconds:
Mothra Leo vs. Ultraman Belial
Location : Ruined Earth
Setting: The ultimate evil had arrived. An powerful being who was once one of the noble warriors from the Land of Light. Having arrived on earth with an army of 100 monsters, the corrupted warrior lays haste on the once beautiful planet Earth. Many of earth's monsters, heroes, warriors, guardians, mech's and even gods attempted to stop him but all had fallen. Now earth is ruled under the iron fist by the name of Ultraman Belial with the remnants of humanity enslaved in his grasp. Unknown to him though, one of the fallen had left behind an child, an legacy on an island that soon hatches and arises instantly arriving to stop him, not only humanity's last beacon of hope and chance to defeat their tyrannical ruler but the entire universe for that matter too.
If anyone happens to do this match. Mothra Leo needs to eventually go into his Armor Mothra form. I'd love to see him attempting the Transcending Fate on Ultraman Belial. Added in 7 hours 44 minutes 38 seconds:
Gamera (Heisei); Written as Showa Gamera vs. Gabara
Location : Monster Island
Setting: Being the friend of all children, Gamera arrives on Monster Island with the intent of stopping Gabara who has been tormenting the child monster known as Minilla throughout his life.