Toho Smash is an alternate name. Look at the list below, and you'll see what I mean. The kaiju that have quotations around its name are kaiju that were custom for Godzilla: Unleashed and were never used. And the superior version of the game will probably be the Wii. And I have some good reasons why the Wii is dominate, but it should really deserve some multi-platform system thing, even though judging from the list, it would have to be a much stronger system.
NOTE: As of for a reference to older things, I put some reps (in playable terms) for books, comics, TV shows, and animated series, Godzilla The Series, Hanna Babara Godzilla, The Dark-Horse comics, from some Godzilla books, and scrapped kaiju.
I also finally confirmed it: Ultraman WILL be in the list. Jirass was also added in, for the Neo's sake. And then Gomora cause he looks cool, and Ultraman Belial because he is a dark Ultra. So now I think I'll have FOUR reps for each 3rd party section. Just look at the list and see who they are. I also added in Downloadable Characters so we can have more kaiju! From extra monsters from Tsuburaya Productions, to Daiei monsters, to even other kaiju! (like Clover, Gappa, etc.)

Playable Characters (name probably explains it all. ):

Earth Defenders:
Godzilla 2000
Anguirus (Showa)
Fire Rodan
Mothra Larva/Imago (Heisi based)
Baragon (Millennium)
King Caesar (Millennium)
Varan
Godzilla 1954
Godzilla 1990's/Burning Godzilla
Mothra Leo Larva/Imago/Rainbow/Aqua/Light-Speed (rush for Aqua)/Armor/Eternal
Battra Larva/ Battra
Godzilla Junior
Gorosaurus
Manda (Millennium)
Minilla (Mixed with Little Godzilla)
Rodan (Showa & Millennium mix)
King Kong (Toho)
Utsuno Ikusagami
Gamera (Heisi)
Frankenstein (Toho)
"Fire Lion"
Sanda
Godzooky
Armie
Sasori
Zilla
Komodithrax
Zone Fighter
Ultraman (original)
Godzilla 1968 <-- FINALLY! The first Godzilla to fly!!
Super Godzilla (Unlock EVERYHTING and defeat Bagan on the highest difficulty.)


GDF (Global Defense Force):
Kiryu
M.O.G.U.E.R.A.
Jet Jaguar
MechaGodzilla 2
Mecha-King Ghidorah (Millennium-ish based)
Mechani-Kong
Gotengo (Millennium)
"The Lightning Bug"
Cybersaur
Super-X (Mixture of all)
Doctor Daisuke Serizawa (at a massive scale of course. >.> )

Aliens:
King Ghidorah (Alienatized Millennium)
Gigan (Showa)
Gigan (Millennium)/ Gigan (Modified)
Fake Godzilla/ MechaGodzilla (Showa)
Orga
Megalon
MechaGodzilla II (Showa)
Moguera
Monster Zero (Showa King Ghidorah)
Monster X
Hedorah (Showa)/ Flying Form (Rush/Flight mode)
Barugaron
Dogora
Razin
Bagorah
"The Visitor"
Dogolas
Ganimes
Gezora
Kamoebas (Showa)
Gryphon
Cyber-Zilla
Legion (Final)
Ultraman Belial

Mutants:
SpaceGodzilla
Destoroyah
Biollante
Megaguirus
Titanosaurus
Krystalak
Obsidius
Balkzardan
Jyarumu
Vagnosaurus
Shiigan
Gaira
Desghidorah
Ebirah (Millennium)
Gabara
Kamacuras
Kumonga
Maguma
Dagahra
Deathla/ Flying Deathla (Rush/Flight mode)
Axor
Kumasogami
Silver Hydra
The Shrewster
Gyaos (Heisi; mixture of the 3 Gyaos)
Irys (or Iris, whichever you prefer)
Jirass
Gomora
Bagan

Alt. Skins
-Earth Defenders
Godzilla '02/'03 - Godzilla 2000
Anguirus FW - Anguirus
Heisi Rodan - Fire Rodan
All other Mothras - Mothra Larva/Imago (Heisi based)
Showa Baragon - Baragon (Millennium)
All other Heisi suits - Godzilla 1990's/Burning Godzilla
GMK Godzilla - Godzilla '54
Showa Manda - Manda (Millennium)
2005 Kong, 1933 Kong, 1976 Kong - King Kong (Toho)
Showa and Millennium costumes - Gamera (Heisi)
All other Showa suits - Godzilla 1968

-GDF
Heisi MKG - Mecha-King Ghidorah
Showa Gotengo - Gotengo (Millennium; 2nd gen)

-Aliens
Heisi KG - King Ghidorah
Millennium Hedorah (though flying form will be the same) - Hedorah
Millennium Kamoebas - Kamoebas (Showa)

-Mutants
Showa Ebirah - Ebirah
Suit Bagan - Bagan


Downloadable Characters

Earth Defenders
Godman
Greenman
Daigoro
Daigoro's Mother
Daimajin
Gappa
Yonggary (though going by the story, he was a former alien kaiju; alt. skin is his 1967 counterpart)
Rhedosaurus
Gfantis (should this guy be in it?)

GDF
MI-6 2 "Miroku"

Aliens
Gomess
Wagilar
Zandolla
Spyler
Garborg
Spider Uros
Jellar/Kastam-Jellar
Jikiro
Kabutoji
Moguranda
Goro-Gorilla
Guiron
Viras
Zigra
Cykor
Ymir (Unplayable)
Negadon (Boss)
The Blob (Boss)
Guilala

Mutants
Clover
Barugon
Jiger
Zedus
Garasharp
Pulgasari
La Carcagne (Boss)
Reptilicus (Boss)

Bosses (non-playable characters that you fight):

Earth Defenders
Giant Octopus
Giant Condor
Giant Sea Serpent
Godzillasaurus (Of course, a LOT larger)
Gopher
Gila
Chuck
Rattler & Yellowback (they work in a pair)
Fire Bird
Earth Eater
Yetrigar
Gekido-jin
Majin Tuol

GDF
Karyu
Rumbling
Eclair
MOTHER
KIDS
Star Falcon
Land Moguera
Dimension Tide
Garuda
Cyborg Whale
Lizard Slayers
Soviet Nuclear Attack Satellite
Akatsuki
Moonlight SY-3
Alpha
Red Ronin
Mu Fortress
SMG-IInd
MGR-IInd
Super MechaGodzilla 2
Asuka Fortress

Aliens
Millennian UFO/ Millennian
Hedorah (Water)/ Hedorah (Land)
Godzilla Tower
Vortaak Mothership
Vortaak UFO α / ß / γ
Vortaak Dome
Black Shark
Mogu
Uchujin
Chimera
Stranger
Beta-Beast
Alien Probe
Vortaak Hammerhead Submarine
Vortaak Mothership
Legion Flower
Keizer Ghidorah

Mutants
Orochi (Heisi)
Deathla (Mushroom)
Rose Biollante
SpaceGodzilla (Flying form)
Destoroyah (Aggregate Form)/ Destoroyah (Flying Form)
Sphinx (from Godzilla Unleashed: Double Smash)
Deutalios
Black Moth
Gigamoth Larva/ Gigamoth
Dragon
Crustaceous Rex
El Gusano Gigante
Quetzalcoatl
Nessie
Magnetic Monster
Kaishin Muba
Doragon Reijuu
Enjin Reijuu
Mizu Reijuu
Sokunikusu (A.K.A. Bagan 1st generation)
Bagan Coccoon (the thing from Super Godzilla that Bagan stays in before awakening)

Unplayable (smaller, more minor weapons/monsters/humanoids that harm the player(s)):

Earth Defenders
Giant Lizard
Snowman
Maneater
Vampire Plant
Fairy Mothra
Amano Shiratori
Ghogo
Phoenix
Giant Ants
Gecko

GDF
Mutant Humans (though they have some aspects of Keizer)
Kamen Riders
Dogfighter
Type 90 Tank
Type 90 Maser Cannon
MBT-92
Shirasagi
Type 88 SSM
IJN Destroyer Hatsuyuki
AH-1S Helicopter
P-3C Orion Maritime Patrol Plane
Satsuma
SH-60
Taiho
Ohio Class Nuclear-Powered Submarine
F-7J Jets
Battle Cruiser Aizu
Escort Cruiser Aka
Griffon
F-15J Jets
Full Metal Missile Launchers
Type 96 APC
Type 74 Tank
DAG-MB96
MBAW-93
Type 75 MSSR
DD-122 Hatsuyuki Class Destroyer
AH-64 Apache
ASTOL-MB93
DDH-142 Haruna Class Destroyer
F-16 Fighting Falcon
M110A2 Self-Propelled Howitzer
Hyper Laser Cannon
M6000 T.C.System
Ballistic Missile Launcher
F-4EJ Phantom II
Half Track V2 Rockets
Typhoon Devastators
Hybrid Tank
Type M3A1
Support Helicopter
Exploration Car
Mini-Half Track V2 Rockets
Trip Wire Cannons
Artificial Lightning Generator
C-46D Plane
Frontier Missile Cruisers
Atomic Heat Ray Gun
P2V-7 Neptune
Honest John Missile Launcher
F-18 Hornet
M270 MRLS
AH-64 Apache
M1A2 Abrams
UH-1H Iroquois
Los Angeles-Class Nuclear Attack Sub
Atomic Burrower
V-TOL
Mu Submarine
Mu Aerial Ships (able to fly above the air and go underwater)
Mu Tank (these things pull off a Landmaster from the Star Fox franchise. )

Aliens
Vortaak Small Fighter UFO
Doomsday Bug
Probe-Bat
Mutant Ogre (if you don't know what I'm talking about, then check here: [link] seventh row, third picture)
Vortaak Crawlers
Vortaak Station(s)
Dorats
Garu-Garu
Space Beastman
Yog
H-Man
Symbiotic Legion

Mutants
Shockirus
Meganulon
Meganula
Matango
Giant Praying Mantis
Barem
Bat People
Giant Rats
Baby Zilla
Titans
Giant Slugs
Giant Bats
Mutant Leech
Mutant Flowers
Bat People
Giant Rats
Baby Irys (Baby Iris)

Arenas:
Tokyo
Osaka
New York
Seattle
San Francisco
Sydney
London
Monster Island
Vortaak Mothership (fully repaired or destroyed, like a night and day for the mothership)
Moscow
Beijing
Paris
Shanghai
Okinawa
Mt. Fuji
Boxing Ring (from G: DAMM and G: STE)
Vortaak Homeworld (G: DAMM)
Lagos Island
Odo Island
Rome, Italy
Athens, Greece
Phoenix, Arizona
Tokai, Japan
Kanazuru, Japan
Papua, New Guinea
Area G, South Pole
Fukoka
Nagoya
Yokohama
"Matango" Island
Infant Island
Undersea Kingdom of Mu

Story Ideas:
-Setting: Planet Earth, 2054. (G:U took place 2024)
-People from the future come to the past to warn the people that a monstrous demon, known as BAGAN, will destroy all of mankind. So then they must find and destroy BAGAN before mankind is destroyed.
-Discovery of an ancient undersea kingdom MU.
-Vortaak attempt to invade earth again.
-SPACEGODZILLA attempts to invade earth as well.
-Crystals on earth dying. Due to this, Power Surges don't exist anymore. But they're a new item (that I have yet to name) that spawns from Bagan's ever growing raw power.
-Mutant monsters rise from the ashes of defeat and lash back at mankind.
-The Earth monsters escape Monster Island, so the GDF have to get them back and protect the cities from mass destruction.
-World returns to "normal" (in their own personal way) after the defeat of BAGAN by the hands of the Earth monsters, GDF, the Aliens, or other mutant monsters at Mt. Fuji.
-If you deafeat the story mode as an Earth Defender or GDF, everything is "normal".
-If you defeat story mode as an Alien monster, the Vortaak will conquer the world.
-If you defeat story mode as SpaceGodzilla, he will conquer the world and the crystals will rise again.
-If you defeat it as another mutant monster (other than Bagan and SpaceGoji), they have their own twisted endings of world domination (coming soon).
-But, if you defeat story mode as BAGAN, the entire planet Earth will die, the Earth monsters didn't stand a chance, humankind will be erased from history, the crystals will disappear, the Vortaak will be crushed in his wrath, the remaining monsters eliminated, and BAGAN will be the only living lifeform standing...

Options in Custom Mode:
-Military aggression
-Military weapondry select
-Single player destruction
-Tiny Monster Mode
-Regenerative power speed
-Energy regeneration speed
-GDF fight option (basically, you fight a random GDF boss (like Karyu) during a brawl battle. Once it's defeated, another random (or the same) GDF boss will appear. This will continue until the match has ended.)

Starting Characters:
Earth Monsters:
Godzilla 2000
Anguirus
Fire Rodan

GDF Monsters:
Kiryu
MOGUERA
Jet Jaguar

Alien Monsters:
King Ghidorah ("Millennium")
Gigan (Showa)
Megalon

Mutant Monsters:
Destoroyah
Titanosaurus
Megaguirus

Starting Stages:
Osaka
Seattle
Monster Island
San Francisco
Oto Island

How to activate other forms:
Burning Godzilla - Burning Godzilla can be accessed if Godzilla 90's grabs a certain item, and mutates into Burning Godzilla. This transformation will only last a period of time. This also not only makes him stronger, it makes him able to use the Heat Spiral Ray.
The Mothra Leo forms - Mothra Leo can grab a certain item that he can only use to evolve from Larva to Rainbow, Aqua, or Armor. Or he could just transform into Imago. Light-Speed Leo can be only used if you rush and if you have 4 cells of energy if you're Aqua Leo. If you are Armor Mothra Leo, after taking the health cells down (1 left), you will turn into Eternal Mothra Leo.
Mothra (Imago) - Just use the transformation technique.
Gigan (Modified) - Use the transformation technique. This makes you disappear from the battlefield for a couple of seconds. Though your health will remain the same.
MechaGodzilla - Transformation technique and Fake Godzilla will shed his skin.
Hedorah (Flying) - Just fly, and he'll morph into flying mode (this form is not considered playable).
Deathla - Just fly, and split into his flying mode (this form is not considered playable).

Others:
Boss Battle option
Challenge Mode (seen below)
All Gallery Videos
3D cutscences (no offense to the drawn cutscenes)
Music Section (this is the area where you can just listen to old Godzilla movie songs and other things related to TOHO. From 1954 up to the current day. The entire soundtrack from each movie and game that each monster has appeared in (if any).
-EX: Dogora is in the game, thus the soundtrack from his movie is in the music section.
-EX 2: Bagan has never appeared in a movie (by todays standards), so the game he appeared in (Super Godzilla in this particular case), the soundtrack will be there.
-EX 3: Dogolas never had a movie or even had his own game. So he doesn't have a special soundtrack.
Inclusion of Blue Oyster Colt's GODZILLA and Zebrahead's GODZILLA VS TOKYO.
Random monster (click on it, and it'll select a monster for you.)
Random stage (click on it, and it'll select a stage for you.)
Store (Except you're not buying monsters and stages this time, but still buying clips, pictures, and the soundtracks (as seen way below.))
Night and day for all stages except for the Vortaak Mothership, which has destroyed mothership or fully repaired mothership.

Consoles
Nintenbox 180!!! (fictional )
Wii
PS3
Xbox 360

Challenges (15 Total) :
1. Daikaiju Wrestling - Wrestle with another kaiju and take them down! Any monster.
2. Take It Down! - Defeat three random alien monsters and destroy the Vortaak Mothership and save the city from total annihilation! Any monster but the Aliens
3. Military Assault! - Destroy all military weaponry and defeat the GDF bosses OR survive for the full 20 minutes given. Any monster
4. Undersea Adventure! - Swim through the water and live to the end of the level. Godzilla 2000, Anguirus, Mothra Larva, Varan, Godzilla 1954, Godzilla 1990's, Mothra Leo Larva, Battra Larva, Godzilla Junior, Gamera, Godzooky, Godzilla 1968, Gotengo, Megalon, Ganimes, Gezora, Kamoebas, Cyber-Zilla, Titanosaurus, Gaira, Ebirah, Maguma, Zilla, Dagahra
5. Caged! - Throw (or shove) 1-3 (depending on the difficulty level) monster(s) into the electro magnetic fields! All GDF characters plus Utsuno Ikusagami, Frankenstein, Sanda, Zone Fighter
6. Sky High! - As an aerial monster, fly through the sky and make it to the ending level! Fire Rodan, Mothra, Varan, Mothra Leo/Rainbow/Aqua/Armor/Eternal, Battra, Rodan, Utsuno Ikusagami, Gamera, Godzooky, Zone Fighter, Godzilla 1968, Kiryu, M.O.G.U.E.R.A., MechaGodzilla 2, Mecha-King Ghidorah, Gotengo, "The Lightning Bug", Cybersaur, Super-X, King Ghidorah, Gigan (Showa), MechaGodzilla (Showa), MechaGodzilla II (Showa), Monster Zero, Monster X, Hedorah (Flight mode [Showa]), Bagorah, Gryphon, SpaceGodzilla, Destoroyah, Megaguirus, Jyarumu, Shiigan, Desghidorah, Kamacuras, Dagahra, Deathla (Flight mode), Gyaos
7. Doomsday - Mutant monsters have risen to decimate all of New York City! Destroy at least 70% or more. Any Mutant monster.
8. Basket Smash - Score the most points by throwing rocks into a rocky-like hoop. Any monster that can grab.
9. Space Travel - Travel through space and defeat the enemy! (either SpaceGodzilla, or an Alien monster). Any GDF mecha (that can travel through space) and Zone Fighter (SpaceGodzilla = Intense; Alien kaiju = Simple, Easy, Normal, Hard (varies on the kaiju)
10. The Tiny Plague - Crush an enormous count of the tiny enemies! Any monster.
11. Rampage - Destroy buildings, military vehicles, and military ships to gain 10,000 points (10 = Simple; 15 = Easy; 20 = Normal; 25 = Hard; 30 = Intense) Any monster.
12. Keeping at bay - The GDF is trying to keep the other monsters out of San Francisco! Try and keep as much of the city as possible! NOTE: If it reaches more than 60% of the city, then you lose! Any GDF character.
13. On board the Mothership - Objection: Defend the destroyed Mothership from the enemy at all cost! Any alien monster.
14. Destroy All Monsters - Objection: Destroy all the monsters (with the exception of Bagan, Monster X, King Ghidorah, and SpaceGodzilla)! Any monster.
15. Final War - Battle against SpaceGodzilla, King Ghidorah, and Monster X in the final showdown! Any monster.
16. Ultimate Death Match! - Face off both phases of Bagan with no assistance! Any monster. (This event can only be unlocked if you complete the other 15)

Soundtracks (Original Japanese versions (if any)):
Godzilla
Godzilla Raids Again
Half Human
Rodan
The Mysterians
Varan
Mothra
King Kong VS Godzilla
Gorath
Atragon
Matango
Mothra VS Godzilla
Ghidorah, the Three-Headed Monster
Dogora
Invasion of the Astro-Monster
Frankenstein VS Baragon
Ebirah, Horror of the Deep
The War of the Gargantuas
Son of Godzilla
King Kong Escapes
Destroy All Monsters
All Monsters Attack
Latitude Zero
Space Amoeba
Godzilla VS Hedorah
Godzilla VS Gigan
Godzilla VS Megalon
Godzilla VS MechaGodzilla
Terror of MechaGodzilla
The Return of Godzilla
Godzilla VS Biollante
Godzilla VS King Ghidorah
Godzilla & Mothra: The Battle for Earth
Godzilla VS MechaGodzilla 2
Godzilla VS SpaceGodzilla
Yamato Takeru
Godzilla VS Destoroyah
Rebirth of Mothra
Rebirth of Mothra 2
Rebirth of Mothra 3
Godzilla 2000: Millennium
Godzilla X Megaguirus
Godzilla, Mothra & King Ghidorah: Giant Monsters All-Out Attack
Godzilla Against MechaGodzilla
Godzilla: Tokyo S.O.S.
Godzilla: Final Wars
Godzilla 3D to the MAX
Monster's Fair
Godzilla: Monster of Monsters
Godzilla 2: War of the Monsters
Super Godzilla
King of the Monsters, Godzilla
Godzilla: Battle Legends
Godzilla: Destroy All Monsters
Godzilla: Giant Monster March
Godzilla: Archipelago Shock
Godzilla Generations
Godzilla: Destroy All Monsters Melee
Godzilla: Domination
Godzilla: Save the Earth
CR Godzilla 3S-T Battle
Godzilla: Pachislot Wars
Godzilla: Unleahsed (Wii)
Godzilla Unleashed: Double Smash
Godzilla: Monster Mayhem
Godzilla Trading Battle
Godzilla Generations: Maximum Impact
Battle Soccer
Godzilla IV
Gamera: Guardian of the Universe
GODZILLA 1998
Blue Oyster Colt - GODZILLA
Zebrahead - GODZILLA VS. TOKYO

Well... that's about it...

See ya'll later.

--"KaijuX"