I would love to see a MonsterVerse fighting game that's in the same style as Godzilla: Destroy All Monsters Melee or Godzilla: Save the Earth.
Playable Monsters could include:
Godzilla (2014 & 2019 varients)
Kong
Mothra
Rodan
Ghidorah
Mutos (Male & Female)
Behemoth
Skull Devil
Mechagodzilla
While other Titans like Scylla, Methuselah, Regular SkullCrawlers, Camazotz, Mire Squid, and Warbats could be Non-Playable Bosses.
Arenas could Include:
Tokyo (obviously)
San Francisco
Boston
Washington D.C.
Hong Kong
Antarctica
Skull Island
Hollow Earth
There could also be multiple endings depending on which Titan You play as:
Godzilla's, Mothra's, and Kong's ending would result in the main threat being eliminated and nature's balance being restored. The attacking titans acknowledge their new alpha and return to their hibernation.
(Good Ending: Nature Has An Order)
Rodan's, the Mutos', Behemoth's and Skull Devil's ending would conclude with titans still fighting each other and destroying cities. The situation remains the same as it was at the begining of the game, hinting at a new age of monsters.
(Chaotic Neutral Ending: A New Age)
Ghidorah's ending would result in him becoming the Alpha Titan (possibly killing Godzilla). Ghidorah and the subjected titans then proceed to destroy all life on Earth.
(Bad Ending 1: Long Live the King)
Mechagodzilla's ending would result in the titans being exterminated. Mechagodzilla then malfunctions and turns against humanity. With no other titans to fight him Mechagodzilla's rampage leads to world destruction.
(Bad Ending 2: An APEX Predator)