The Unified Empire is a massive Megaversal Empire that spands beyond the Multiverse, Omniverse, Ultraverse, Superverse, Quantumverse, Crystalverse, Draconicverse, Inquisiverse, Hyperverse and so on to the Megaverse itself there are 61 layers beyond the Multiverse in total and the Unified Empire has a massive alliance with countless Species throughout the Megaverse and 67 military branches from Nightmare Guards to Sith Knights, to Doom Marines, Spartans, Guardian Generals, Onyx Guards, Section 8, Immortal Soldiers, Royal Guards, and so on and the Unified Empire's Emperor is Sovereign who is a Anthro Nightmare Alicorn and he is the All Powerful Elderitch God creator of the Megaverse and all life within it.

Sovereign is an Anthro Nightmare Alicorn and he is the all powerful Elderitch God one of the highest of them all and he is over 900 Quadrillion years old and he is friends with the Doom Slayer and many other powerful beings and deities that support him and Sovereign is the Emperor of the Unified Empire throughout the Megaverse itself that spands from the Multiverse, Omniverse, Ultraverse, Hyperverse, Superverse, Quantumverse, and another 55 other layers of reality of existence each one more massive than the last to the Megaverse itself the Unified Empire despises tyranny and the Unified Empire is extremely loyal to their Emperor to bring peace, and equality to all and he has over a thousand wives of different species from across realities that loves him and over 17,000 children and over 45,000 grandchildren and the Unified Empire itself is as old as their Emperor and his main force are the Nightmare Guards black armored soldiers their armor is completely indestructible the same for the other 67 military branches. the Nightmare Guards themselves are trained to challenge the mightiest of gods they are as dangerous and persistent as the doom slayer and each military branch is more powerful than the last

Sovereign is an Anthro Nightmare Alicorn and he is also an Elderitch God and he is over 900 Quadrillion years old and he is the Emperor of the Unified Empire

Robot Sonic is a prototype version of Silver Sonic design to be silver Sonic's replacement

Serga is an Anthropomorphic Siren and she is 21 years old

Cathy is 21 years old and Catherine is 23 years old

Infinite the Jackal is an Anthropomorphic Mobian Jackal and he is from Sonic Forces Video Game

Vayolet the Demonhog is an Anthropomorphic Mobian Demonhog and she is 19 years old

Sonic and his friends were going to a Halloween Party through a path

Dark Lugia is an Anthropomorphic Dark Lugia of the Pokemon Species and she is 19 years old

Super Sonic X Universe Animated Series Trick or Treating Sonic the hedgehog and his wife Susanoo the lynx known as the Goddess of Storms take their Daughter Nanami the Hedgelynx trick or treating to a creepy town at creepy houses giving out candy and their friends and relatives were joining on the Trick or Treating

Rouge The Bat was captured by sticks the badger and she was being prepared for dinner

Sonic and everyone was going to Exe the Hedgehog's mansion for a Halloween Party they didn't trust Exe one bit since he was created by Albert Wesker owner of the Umbrella Corporation as the Ultimate Weapon

Sonic and Friends were going to Dracula's Mansion as in Alucard the Vamphog who is good friends with Exe the hedgehog The Ultimate Weapon

Con Lagrimas the hedgehog is an Anthropomorphic Mobian Hedgehog and she is 18 years old

Enogada The Fox is an Anthropomorphic Mobian Fox and she is 19 years old

Hermosa The Demonhog is an Anthropomorphic Mobian Demonhog and she is 21 years old and she is Vayolet's twin sister

Mecha Sonic is a more powerful and more dangerous version of Metal Sonic and he has betrayed Doctor Eggman far too many times trying to destroy the world and he has been in the Warehouse locked up by Doctor Eggman and his Robot Army however what nobody knows about that Exe the hedgehog the Ultimate Weapon created by Albert Wesker owner of the Umbrella Corporation has made multiple Mecha Sonic's unlike the original Mecha Sonic that went crazy these Mecha Sonics are more improved and upgraded versions with other types of Mechas and they are loyal to Exe and their creator fixes them a lot and never tried to throw them away like Eggman would do to his own robots and they are all designed to be the Ultimate Robots to especially Surpass the Original Mecha Sonic if he ever escapes they would be ready for him

Ogre Woman is known to cook her prisoners alive for dinner

Willow is an Anthropomorphic Werewolf and she is 21 years old and she is of the Werewolf Tribe

Twi'yana is an Anthropomorphic Velocaraptor of the Dinosaur Species and she is of the Velocaraptor Tribe and she is 21 years old

Jack Skeleton is from the Nightmare Before Christmas Animated Movie and Animated Series and he was driving a bus of Ghouls to a different Universe to a different planet called Mobius where sonic and his friends are having a Halloween

Fleetway Sonica is an Anthropomorphic Mobian Hedgehog and Sonica.exe is an Anthropomorphic Mobian Exe Hedgehog