Gaia Saver

Gaia Saver: Hero Saidai no Sakusen  is a Super Famicom video game that was only released in Japan in 1994.

Summary

Gaia Saver is a science fiction role-playing game, where the player has to fight wielding an alliance with the super deformed heroes. The primary objective is to save the Earth. The heroes advance in three parties. While the story progresses, various heroes become companions, and participate in the battle.

Plot

The Earth is under attack, devastated by terrorist activities conducted by Shocker, invading alien monsters, natural disasters such as earthquakes, tsunamis, tornados, and finally, colony drops conducted by the Principality of Zeon. Earth's military, including the Earth Federation Forces, is powerless to protect the planet.

From the Land of Light in Nebula M78, Father of Ultra senses that Earth is in great danger, and sends three Ultra Warriors: Ultraman, Zoffy, and Leo, to save the planet.

Earth Federation Forces' main headquarters, Jaburo, was under an all-out attack by Zeon's forces. Thanks to the intervention of the Ultras, however, Amuro Ray, as well as the rest of the White Base crew managed to escape to the SSSP headquarters in Japan. While there, the heroes agree that none of them have the power to save the world by themselves, and agreed to form an "alliance" to protect Earth against the enemies that threaten it.

Characters

Gundam series

Gundams, unlike Kamen Riders and Ultras, are operated by human pilots. Since mobile suits are too big to fit in-doors, Gundam pilots are forced to switch to Petite Mobile Suits within in-door dungeons.

Amuro Ray / Gundam F91→ Gundam → ν Gundam → Gundam Killer

The protagonist of the game, though he temporarily becomes an enemy when he heads to space alone to stop the Zeon-Shocker Alliance's colony drop, only to end up captured and brainwashed. He became the pilot of Gundam Killer, a mobile suit designed specifically to destroy Gundams. Though his teammates managed to undo his brainwashing, and he rejoined the team.

Seabook Arno / ν Gundam → F91 Gundam

In the late Gundam, ν Gundam, the transfer of the aircraft carried three Gundam F91.

Ultraman series

Ultras can only fight for a limited period of time before their Color Timers begin to flash, and they will eventually become incapacitated once the time runs out. Unlike Gundams, they can shrink in size to fit inside in-door dungeons. They are the only characters who can use healing skills.

Shin Hayata / Ultraman

Joins the party in place of Amuro when he goes to space.

Dan Moroboshi / Ultraseven

Temporarily joins the player's team, gives the items Agira, Windom, and Miclas.

Gen Otori / Ultraman Leo

Saves Amuro from Zeon mobile suits led by Ramba Ral at Jamuro, first party member in the game.

Kamen Rider series

Kamen Riders are not limited by size or time limits, and can fight in any kinds of environments (even outer space).

Daisuke Yamamoto / Kamen Rider Amazon

Has a high attack power, joins the party very early in the game.

Kazuya Oki / Kamen Rider Super-1

Joins alongside Seabook in Chapter 5. Fights using martial arts skills.

Kotaro Minami / Kamen Rider Black RX

Joins in Chapter 2. Turns into Robo Rider when using Hard Shot, and Bio Rider when using Spark Cutter.

Original

Mark Hunter

Original character created for the game. A bounty hunter who was hired by the alliance and becomes a temporary party member. He joins the party formally late in the story.

Video Games
Nintendo	Ultraman: Kaiju Teikoku no Gyakushuu (Famicom Disc System) | Ultraman 2: Shutsugeki Katoku Tai (Famicom Disc System) | Ultraman Club Chikyū Dakkan Sakusen (Famicom Disc System) | Ultraman Club 2: Ultraman Club Returns (Famicom Disc System) | Ultraman Club: Supokon Fight! (Famicom) | Ultraman Club 3: Mata Mata Shutsugeki!! Ultra Kyoudai (Super Famicom) | Ultraman (Super Famicom) | Ultraman Club: Kaijuu Dai Kessen!! (Super Famicom) | Ultraseven (Super Famicom) | Ultraman: Towards the Future (Super Nintendo) | Super Pachinko Taisen (Super Famicom / Game Boy) | Ultra League: Moero! Soccer Daikessen (Super Famicom) | SD Ultra Battle: Ultraman Densetsu (Super Famicom) | PD Ultraman Battle Collection 64 (N64) | Mega Monster Battle: Ultra Coliseum (Wii) | Mega Monster Battle: Ultra Coliseum DX: The Gathering of The Ultra Heroes! (Wii) | Nari Kids Park: Ultraman R/B (Switch) | Ultra Kaiju Monster Rancher (Switch)
PlayStation	PD Ultraman Invader (PS1) | Ultraman Zearth (PS1) | Battle Formation (PS1) | Ultraman Tiga & Ultraman Dyna: Aratana Futatsu no Hikari (PS1) | Ultraman Fighting Evolution (PS1) | Kids Station: Ultraman Bokura to Asobou (PS1) | Kids Station: Ultraman Cosmos (PS1) | Ultraman Fighting Evolution 2 (PS2) | Ultraman (PS2) | Ultraman Fighting Evolution 3 (PS2) | Ultraman Nexus (PS2) | Ultraman Fighting Evolution Rebirth (PS2) | Pachinko Ultraman (PS2)
Xbox
Other Consoles	Tatakae! Ultraman (Bandai RX-78) | Ultraman (MSX) | Ultraman (SEGA Mega Drive) | Ultraseven (SEGA Mega Drive) | Ultra Strategy, Mobilization of the Science Patrol! (PC) | Ultraman Powered (3DO) | Ultraman Quiz King (Apple Pippin) | Ultraman: The Digital Board Game (Apple Pippin) | Action Designer: Ultraman Tiga (Apple Pippin) | SD Ultraman's Challenge! Maze Island (Apple Pippin) | PD Ultraman Link (SEGA Saturn) | Ultraman: Hikari no Kyojin Densetsu (SEGA Saturn) | Ultraman Zukan 1, 2 and 3 (SEGA Saturn)
Handheld	Ultraman (Game Boy) | Ultraman Club: Teki Kaijū o Hakken Seyo! (Game Boy) | Cult Master: Ultraman ni Miserarete (Game Boy) | Ultraman: Super Fighter Legend (Game Boy) | Ultraman Ball (Game Boy) | Ultraman: Hikari no Kuni no Shisha (Wonder Swan Color) | Taiketsu! Ultra Hero (Game Boy Advance) | Ultra Keibi-tai: MONSTER ATTACK (Game Boy Advance) | Kaiju Busters (Nintendo DS) | Kaiju Busters POWERED (Nintendo DS) | Ultraman All-Star Chronicle (PSP) | Ultraman Fighting Evolution 0 (PSP)
Arcade	Ultraman | Ultraman Club: Tatakae! Ultraman Kyoudai!! | Ultra Toukon Densetsu | Ultra X Weapons | Mega Monster Battle: ULTRA MONSTERS | Mega Monster Battle: ULTRA MONSTERS NEO | Mega Monster Battle: RR | Ultraman Fusion Fight! | Ultraman Abaren Bowl
Pachinko/Pachislot	CR Pachinko Ultraman Taro: Fight!! 6 Ultra Brothers | CR Pachinko Ultraman Taro: Darkness Strikes Back | CR Pachinko Ultra Battle Retsuden: Fight Zero! The Strongest Young Warrior | Pachinko Ultraseven | CR Pachinko Ultraseven 2 | Pachinko Ultra 6 Brothers | Pachinko Ultraseven Chou Ranbu | Pachinko Ultraman Taro 2 | Pachislot Ultraman Taro | Pachinko Ultraman Tiga 1500×84
Bandai Playdia	Ultraman Powered ~ Kaiju Gekimetsu Sakusen ~ | Ultraseven ~ Chikyu Boei Sakusen ~ | Ultraman ~ Hirakuna Daisakusen ~ | Ultraman ~ Alphabet TV e Youkoso ~ | Ultraman ~ Oide yo! Ultra Yoichien ~ | Ultraman ~Ultraland Souji de Asobou ~ | Ultraman ~ Chino Up Daisakusen ~
Crossover Games and Collaborations	SD Battle Ozumo: Heisei Hero Basho (Famicom) | SD Hero Soukessen: Taose! Aku no Gundan (Famicom) | SD The Great Battle (Super Famicom) | Battle Dodge Ball (Super Famicom) | Battle Soccer: Field no Hasha (Super Famicom) | SD The Great Battle II: Last Fighter Twin (Super Famicom) | Versus Hero: Road to the King Fight (Game Boy) | Battle Dodge Ball (Game Boy) | Hero Senki: Project Olympus (Super Famicom) | Battle Soccer: Field no Hasha (Super Famicom) | Great Battle Cyber (Famicom) | Battle Baseball (Famicom) | The Great Battle III (Super Famicom) | Battle Dodge Ball II (Super Famicom) | Tekkyu Fight! The Great Battle Gaiden (Game Boy) | The Great Battle Gaiden 2: Matsuri da Wasshoi (Super Famicom) | Gaia Saver (Super Famicom) | Battle Soccer 2 (Super Famicom) | The Great Battle IV (Super Famicom) | Battle Crusher (Game Boy) | Battle Pinball (Super Famicom) | Battle Racers (Super Famicom) | Super Pachinko Taisen (Super Famicom / Game Boy) | The Great Battle V (Super Famicom) | Ganbare! Bokura no Compati Heroes (SEGA PICO) | Super Tekkyu Fight! (Super Famicom) | The Great Battle VI (PS1) | Super Hero Operations (PS1) | The Great Battle Pocket (Game Boy Color) | Tokusatsu Bouken Katsugeki Super Hero Retsuden (SEGA Dreamcast) | Super Hero Operations: Diedal's Ambition (PS1) | Super Tokusatsu Taisen 2001 (PS1) | Charinko Hero (GameCube) | Great Battle Full Blast (PSP) | Battle Dodge Ball III (PSP) | Lost Heroes (PSP / 3DS) | HEROES' VS (PSP) | Super Hero Generation (PS3 / PS Vita) | Lost Heroes 2 (3DS) | City Shrouded in Shadow (PS4) | Override 2: Super Mech League | Super Robot Wars 30 | Fall Guys | Godzilla: Battle Line (Mobile) | Shin Kamen Rider Rumble (Switch) | GigaBash | Eggrypt
Mobile	Ultraman Galaxy | Ultra Kaiju Battle Breeders | ULTRAMAN: BE ULTRA
Outlaw Games	Ultraman Rumble | Ultraman Battle Online | Ultraman Bros. | Ultraman Rumble 2: Heroes Arena | Ultraman Rumble 3 | Ultraman: Kaiju Kombat AR | Ultraman: Kaiju Kombat