Icon-gingamanThis article is about a Ranger in Power Rangers Lost Galaxy.

"Galaxy Blue!"
―Blue Galaxy Ranger's Roll Call[src]

Kai Chen is Galaxy Blue of the Galaxy Rangers and the second-in-command to Galaxy Red.

He is also referred to as Blue Galaxy Ranger or Lost Galaxy Blue Ranger - variations on his in-show label, though the latter is more in reference to the show than a proper label.


Lost Galaxy[]

Straight-laced, sensible and ambitious, Kai is the classic overachiever. Having been brought up in a strict military family, he always does things by the book and likes everything in its place. His orderly world is turned upside down when he becomes a Power Ranger, and he must learn that sometimes rules are meant to be broken when it comes to saving the universe. He is apparently a good friend of Kendrix Morgan. His fighting style consists of grappling moves and throws, presumably taught by the military.

Kai's strict adherence to the rules initially causes much conflict with Leo but after an incident in which the Quasar Sabers were stolen, Kai warms up to him considerably.

Kai was responsible for the majority of the meals the Rangers ate aboard Terra Venture. When a lovesick Kai rendered himself bed-ridden for several days after a romantic letdown, the other Rangers complained about the lack of decent food to eat, as Kai was the Galaxy Ranger who either had the greatest cooking expertise or the only one who was willing to cook for the group.

Lightspeed Rescue[]

Trakeena's Return[]

Kai and Maya help Carter

Kai and Maya appear at the exact moment to help Carter against the Ghouls army.

One year later, after the apparent destruction of Trakeena, who managed to survive the attack from Leo's Battlizer, Trakeena went to Earth and form an alliance with the Demon Warrior Triskull, who kidnaps people, stealing their life energy so Trakeena can return to her insectoid form.

Kai pulls the Blue Quasar Saber once more, aware of the situation about Trakeena's return, he and Maya go to Earth to help the Lightspeed Rangers against Trakeena.

Kai and Maya now morphed, attack with a flying kick on some Ghouls, helping Carter Grayson the Lightspeed Red Ranger. Kai defeated various Ghouls in hand to hand combat, with all the Ghouls defeated, the three Rangers take Heather back to the Lightspeed Aquabase.

In the Aquabase, everyone meets, the three Galaxy Rangers. All eight Rangers head for the hills with Heather, and find Triskull.

Kai, Maya and Leo going to fight against Triskull

Kai, Leo and Maya going to attack Triskull.

Triskull summons an army of Ghouls from the ground, Kai and the other Rangers morphed, and Kai along with Maya and Leo helps the Lightspeed Rangers, using specials attacks from their Quasar Sabers destroyed all the Ghouls. After Carter powers up his Battle Booster and charges at Triskull but he is easily overpowered. Kai with Maya and Leo were going to attack Triskull but they are attacked by Triskull's ray easily overpowering them, all eight Rangers are attacked by Triskull's lightning spit. Tvicon TV STORY-Trakeena's Revenge, Pt.1

Teaming up with the Lightspeed Rangers[]

Kai, Maya and the other Rangers disguised as firemen while evacuating the people from the building

Kai and the other Rangers disguised as firemen, after they evacuated all the people in the building.

Kai and the Rangers are defeated on the ground, Triskull leaves the place and the Rangers devised a plan for all the people to leave the building. The Rangers prepare a raid on the thirteenth floor disguised as firemen, when Heather actives the fire alarm as part of the plan, all the people evacuating the building.

After all the people leave the building, Kai, Maya and the rest of the Lightspeed Rangers saved his Galaxy Ranger teammates and Carter, with the Rescue Rover airbag.

Prince Olympius arrives with his crew, and he dares to take on the team of Rangers. Kai and the other Rangers morphed, and all the Rangers divide into groups of two to fight against the Batling army.

Kai and Chad team up against Batlings

Kai and Chad Lee team up against several Batlings.

Kai team up with Chad Lee his Blue Ranger successor. They easily defeated several Batlings, while fighting against the Demon warrior Loki.

Both Ranger teams attack Olympius, Vypra and Jinxer, Kai and his Galaxy Ranger teammates attack with a burst of energy with each color of each Ranger, while the Lightspeed Rangers attack alongside with them with their Thermo Blasters.

Olympius throws the poisoned dagger into Trakeena's lab. He pollutes the energy feed going to Trakeena. She mutates, but not as she expected and she is now a giant, tentacled, fire-breathing monstrosity rampaging through Mariner Bay. The Lightspeed Rangers turn to the Omega Megazord and the Max Solarzord. Just when the Galaxy Rangers wish the Galactabeasts were on Earth, they show up.

The Galaxy Rangers join the battle with the Galaxy Megazord. The Omega and Galaxy Megazords combine their special attacks and fire at Trakeena but she still lives. The resulting explosion disengages the Galaxy Megazord, Kai and the Galaxy Rangers are knock unconscious.

The Lightspeed Rangers and Galaxy Rangers defeating Trakeena

With the combined powers of the Lightspeed Rangers and the Galaxy Rangers, both teams destroy Trakeena.

The Omega Megazord lifts the fallen Rangers, and it is powered up by the Lights of Orion, gaining the familiar Orion armor. The Omega Megazord powers its weapon up as well as the Galaxy Megazord Saber (complete with Lightspeed insignia) and ultimately destroys Trakeena for good.

The Lightspeed Rangers convince the Galaxy Rangers to stay on Earth as they believe Mariner Bay needs a second team of Rangers but the Galaxy Rangers are still needed on Mirinoi. The two Rangers bid farewell to each other later. He then returns to Mirinoi. Tvicon TV STORY-Trakeena's Revenge, Pt.2

Dino Thunder[]

The Galaxy Rangers were featured in a chronicle of Power Ranger history compiled by Tommy Oliver shortly after he formed the Dino Rangers, which was found by the nascent Ranger team in the Dino Lab. Tvicon TV STORY-Legacy of Power


Kai along with his fellow Galaxy Rangers and other Ranger teams are seen in Troy's premonition about the Legendary Battle. Tvicon TV STORY-Mega Mission

He and the other Rangers are seen again in another of Troy's dream/vision about the Legendary Battle. Tvicon TV STORY-Stranger Ranger

After the apparently death of Vrak, Kai is seen briefly with the other Rangers in Troy's premonition about the Legendary Battle. Tvicon TV STORY-The Messenger

Super Megaforce[]

PRSM-Lost Galaxy Rangers

Kai with with his fellow Galaxy Rangers in the Legendary Battle.

Emperor Mavro was defeated, but the remaining thousands of X Borgs still stand. Tommy gathered all the existing Power Rangers, Kai returned with his fellow Galaxy Rangers as part of the army of Legendary Rangers led by Tommy that helped the Mega Rangers defeat the Armada once and for all, fighting in a huge battle against hundreds of X Borgs and dozens of Bruisers. After the demise of the X Borgs, Tommy shook hands with Troy and teleported off along with Kai and the Legendary Rangers. He then once again returns to Mirinoi. Tvicon TV STORY-Legendary Battle

Beast Morphers[]

Galaxy Rangers beast morphers

Kai in Scrozzle's database.

Kai was shown in archive footage, along with the other Galaxy Rangers in Scrozzle's database, when the villains were looking for a past villain to revive with the Reanimizer, and came across Psycho Red. When Robo-Blaze deems that Psycho Red is the perfect candidate, Robo-Roxy is not so sure. She recalls that Psycho Red’s obsession over Andros led to the Psycho Rangers' destruction as the footage of the Psycho Rangers being destroyed by both the Space Rangers and Galaxy Rangers is shown.

Blaze is disgusted and wants to use the Reanimizer to revive all the Psycho Rangers. However, Scrozzle has the resources for resurrecting only one, as a result the villains follow search in Ryjack's collection. Tvicon TV STORY-Making Bad

Dino Fury[]

Zayto activates the Legendary Ranger Database, showing Master Blue that Master Green came to them after the Dinohenge statues were destroyed and restored them to normal. Also, Zayto says that he found Ranger teams who were saved in their darkest moments through unexplained reasons and shows them three specific moments. Including the Legendary Battle where all the Legendary Rangers including Kai and the other Galaxy Rangers coming to the aid of the Megaforce Rangers in the Legendary Battle and helping them defeat an entire army of the Armada's X Borgs. Tvicon TV STORY-Morphin Master

Once & Always[]

Once And Always Captured Rangers

Kai among the group of Rangers captured by Rita

Following the return of Rita Repulsa in a new robotic body, Kai was among the Rangers that responded to the Bandora Protocol issued by the Mighty Morphin team after groups of Putties started appearing all over the world. After returning to Earth from Mirinoi, Kai was later ensnared and captured by Snizzard and used to power Robo-Rita's time portal alongside several other Rangers, including his teammates Leo and Damon. Once the Mighty Morphin Power Rangers destroyed Snizzard, Kai and the other Rangers were released and brought to the S.P.A.'s med-bay for recovery before traveling to Aquitar, where the Aquitians would fix him up. Tvicon TV STORY-Mighty Morphin Power Rangers: Once & Always


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Galaxy Blue[]


Ranger Costume

Powers and Abilities[]


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Appearances: LG Episodes 2-42, 44, 45; LR Episodes 29, 30; SM Episodes 20 & LBEV


Lights of Orion Armor

Powers and Abilities[]


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Appearances: LG Episodes 13-17, 19-21, 23-25, 28-32, 34, 35, 37, 39-41; LR Episode 30





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Villain Groups[]

Scorpius and Trakeena's Army[]
United Alliance of Evil[]
Captain Mutiny's Army[]
Evil Space Aliens[]


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Behind the Scenes[]



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Ranger Key[]

GingaBlue Ranger Key

The Galaxy Blue Ranger Key.

The Galaxy Blue Ranger Key is Kai's personal Ranger Key. This key along with the majority of the Core Ranger Keys are seen lining the Command Center's interior walls. This key is mainly used by Noah Carver (Super Megaforce Blue) who uses it to fight as the Blue Galaxy Ranger.

The Blue Lost Galaxy Ranger Key is one of the five water-element Blue Ranger Keys that are used by Super Megaforce Blue for his Ultimate Ranger Saber Strike attack, which was used once against Skatana. This attack involved summoning manifestations of the five Rangers to attack the target, with Lost Galaxy Blue being the last to go. Tvicon TV STORY-Blue Saber Saga



Power Rangers Key Scanner[]

Blue Galaxy Ranger Scanner App Assets

Galaxy Blue Ranger in Power Rangers Key Scanner

Kai as Galaxy Blue Ranger appears in the app videogame Power Rangers Key Scanner, among various other Ranger teams.

Power Rangers Super Megaforce: Legacy[]

Galaxy Blue in PR SMF Legacy

Galaxy Blue Ranger in Power Rangers Super Megaforce: Legacy

Kai as Galaxy Blue Ranger appears only usable for Final Strike in the videogame Power Rangers Super Megaforce: Legacy, among various other Ranger teams.

See Also[]



Power nav icon Power Rangers Lost Galaxy Icon-gingaman
Leo Corbett - Damon Henderson - Kai Chen - Maya - Kendrix Morgan - Karone - Magna Defender - Mike Corbett
Transmorpher - Magna Defender Morpher - Quasar Sabers - Transdaggers - Quasar Launchers - Magna Blaster - Lights of Orion - Jet Jammers - Astro Cycles - Capsular Cycle - Red Armored Ranger
Commander Stanton - Alpha 6 - DECA - GSA - Andros - T.J. Johnson - Carlos Vallerte - Ashley Hammond - Cassie Chan - Professor Phenomenus - Farkas Bulkmeier - Carter Grayson - Chad Lee - Joel Rawlings - Kelsey Winslow - Dana Mitchell
Zords and Megazord
Lion Galactabeast - Condor Galactabeast - Gorilla Galactabeast - Wolf Galactabeast - Wildcat Galactabeast - Torozord - C-Zords - S-Zords - Zenith Carrierzord - Astro Megaship
Galaxy Megazord - Defender Torozord - Centaurus Megazord - Stratoforce Megazord
Scorpius - Trakeena - Furio - Treacheron - Deviot - Villamax - Kegler - Stingwingers
The Psycho Rangers
Psycho Red - Psycho Black - Psycho Blue - Psycho Yellow - Psycho Pink
Captain Mutiny's Crew:
Captain Mutiny - Barbarax - Hexuba - Titanisaur - Swabbies
Scorpius and Trakeena's Monsters: Brunt - Radster - Horn - Gasser - Sledge - Mutantrum - Wise Wizard - Quakemaker - Starcog - Ruptor - Samuron - Fishface - Chillyfish - Destruxo - Impostra - Shark Brothers - Freaky Tiki - Skelekron - Crumummy - Hardtochoke - Kubak - Teksa - Rykon - Cannonbrawl - Icy Angel - Motor Mantis - Loyax - Maronda - Trencher - Chameliac - Spikaka - Ironite - Magnetox - Decibat - Buzz (scrapped)
Captain Mutiny's Monsters: Rocketron - Grunchor - Rojomon - Nightmare
Others Monsters: Alien - Trencher - Hunghorn
Power nav icon Power Rangers Lightspeed Rescue Icon-gogofive
Carter Grayson - Chad Lee - Joel Rawlings - Kelsey Winslow - Dana Mitchell - Ryan Mitchell
Rescue Morpher - Titanium Morpher - Rescue Blaster - Rescue Bird - Battle Boosters - V-Lancer - Titanium Laser - Lightspeed Cycles - Rescue Rover - Trans Armor Cycle
Captain William Mitchell - Angela Fairweather - Leo Corbett - Damon Henderson - Kai Chen - Maya - Kendrix Morgan - Wesley Collins - Jen Scotts - Lucas Kendall - Katie Walker - Trip - Eric Myers - Cole Evans
Zords and Megazords
Rail Rescue 1 - Rail Rescue 2 - Rail Rescue 3 - Rail Rescue 4 - Rail Rescue 5 - Pyro Rescue 1 - Aqua Rescue 2 - Aero Rescue 3 - Haz Rescue 4 - Med Rescue 5 - Max Solarzord - Omegazord 1 - Omegazord 2 - Omegazord 3 - Omegazord 4 - Omegazord 5
Lightspeed Megazord - Supertrain Megazord - Lightspeed Solarzord - Omega Megazord - Lifeforce Megazord
Queen Bansheera - Prince Olympius - Diabolico - Loki - Vypra - Jinxer - Batlings
Ghouligan - Magmavore - Quakemon - Whirlin - Fireor - Gold Beaked Monster - Elestomp - Striking - Cyborg Rangers - Smogger - Trifire - Liztwin - Demonite - Thunderon - Falkar - Troika - Cobra Incarnate - Thunderclaw - Shockatron - Spellbinder - Moleman - Cyclopter - Mantevil - Vilevine - Freezard - Infinitor - Birdbane - Memorase - The Gatekeeper - Furnace Monster - Ghoular - Flowar - Mermatron - Fire Wasp - Aquafiend - Arachnor - Treevil
Triskull - Ghouls
Blue Rangers
Billy CranstonCestroRocky DeSantosJustin StewartT.J. JohnsonKai ChenChad LeeLucas KendallMax CooperTori HansonEthan JamesSchuyler TateBridge CarsonMadison RoccaDax LoTheo MartinFlynn McAllistairKevinNoah CarverKodaPreston TienRavi ShawOllie Akana
Billy Cranston (1995 movie)Billy Cranston (World of the Coinless)SergeCenozoic Blue RangerBilly Cranston (2017 movie)Eddie BanksLina SongNikolai ChukarinChun-LiBlue Emissary

Secondary Rangers
NinjorAuric the ConquerorBlue SenturionBlake BradleyJungle Fury Shark RangerJames NavarroHeckylKiya KyatylYale of Saard
Billy PuttyPuttyBobbyWilliamBilly CloneStanford WinnerBlue Shadow RangerRobo JustinBlue CreepPsycho BlueBlue Cyborg RangerEvil Time Force BlueShark Shadow RangerEvil BlakeA-Squad BlueEvil Blue Mystic RangerEvil Blue Overdrive RangerCenozoic era Blue RangerRobo Blue Space Ranger
Blue Battalion RangerBlue Blitz RangerBlue Prism RangerBlue Lightning RangerBruteOrisonth

Power Sets
Blue RangerBlue Aquitar RangerZeo Ranger III BlueBlue Turbo RangerBlue Space RangerGalaxy BlueBlue Lightspeed RangerTime Force BlueBlue Wild Force RangerBlue Wind RangerBlue Dino RangerS.P.D. Blue RangerBlue Mystic RangerBlue Overdrive RangerJungle Fury Blue RangerRanger Operator Series BlueBlue Samurai RangerMegaforce BlueSuper Megaforce BlueDino Charge Blue RangerDino Charge Aqua RangerNinja Steel BlueDino Charge Dark RangerGrid Battleforce Blue RangerDino Fury Blue RangerCosmic Fury Blue Ranger
Blue Ranger (1995 movie)Blue Ranger (2017 movie)