Characters / Cave Story

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    Main Characters 

Mister Traveler/Quote

The Playable Character. An amnesiac who awakes in a small cave in the depths of a strange island.
  • Accidental Pervert: He can optionally find Curly's panties in a hidden passage of the Colons' house in the Sand Zone. And no, they don't do anything.
    • They have a purpose in the Plus edition, They unlock Curly as a playable character.
  • Amnesiac Dissonance: It's eventually revealed that he was one of many robots sent from the surface to kill the Mimigas and claim the Demon Crown. Subverted if you restore Curly's memories, when she remembers that the two of them were made separately to destroy the Demon Crown, so he's actually doing what he was made for after all.
  • Amnesiac Hero: He was really a robot sent from the surface to destroy the Demon Crown. He also never recovers his memories; Curly Brace has to tell him all this after she recovers her own memory.
  • Badass: Justified because he's a soldier (specifically a scout droid).
  • Heroic Albino: Since it's not actually skin, but probably some kind of polymer.
  • Heroic Mime: Even when you're playing as Curly, he only talks out loud once.
  • Hyperspace Arsenal: He can carry vast amounts of weaponry, various keys he doesn't even need, various devices that are built onto his weapons, jars, food, and badges, and at the end of the day, still have enough room to fit panties and lipstick in too.
  • Lightning Bruiser: Very nimble (especially with the Booster upgrades), wields plenty of powerful weapons, and can potentially survive a lot of damage with sufficient Health upgrades.
  • Only One Name: It's "Quote." It's said only once in the whole game when Curly recovers her memories (or, if you're playing in Curly Mode, the only line he says out loud).
  • Red and Black and Evil All Over: With that red hat and black shirt, you start off with everyone thinking you are a battle robot and "Mimiga-butcher". The fact that you are a soldier doesn't help. Subverted later on when you learn that you were sent to destroy the Demon Crown rather than the Mimigas.
  • Ridiculously Human Robot: As we learn from Professor Booster, despite his human-like limitations.

Curly Brace

A mysterious young woman who seems to know a bit about our hero.
  • Action Girl: Justified. Like Quote, she's a robot sent from the surface to destroy the Demon Crown.
  • Badass Adorable: About as cute you can be for a deadly robot.
  • Back-to-Back Badasses: In the Sacred Grounds, if you got the Iron Bond item, she'll ride on the main character's back, shooting things with her machine gun.
  • Contractual Boss Immunity: Aside from preventing drowning, her bubble tank also grants immunity to otherwise overpowered missiles.
  • Defeat Means Friendship: The first time the player meets her, she thinks he's there to kill the Mimigas. After defeating her, she actually listens to him, and puts her weapons down.
  • Gameplay Ally Immortality: During the segment in the Labyrinth where she fights alongside the protagonist, she is completely invincible. She can even walk through spikes.
  • Genki Girl: Upbeat is pretty much her default mood.
  • Guest Star Party Member: During the second half of the Labyrinth.
  • Heroic Sacrifice: After the battle with the Core, she gives you her bubble-tank and drowns in your place. She can be revived if you ignore the injured Booster and pick up a tow-rope in the chamber.
  • Let's You and Him Fight: Attacks the player character almost immediately after he meets her.
  • Lightning Bruiser: She can become one, just like Quote, when playing as her in Curly mode.
  • More Dakka: Her Machine Gun, which she'll offer to you after beating her; she takes the Polar Star in return.
  • Nice Girl: She and Quote have a little misunderstanding when they first meet but even then it was only because she was trying to protect some Mimiga kids she was taking care of. She also sacrifices herself to keep you alive for no reason other than that she wanted to.
  • Ridiculously Human Robot: She can eat and digest food, among lots of other little things.
  • Super Not-Drowning Skills: Thanks to an oxygen tank that she carries around, an oxygen bubble forms around her every time she steps foot in water. She gives it to you after the Core fight.
  • Theme Naming: Curly Braces { } are widely used in programming software.

Sue Sakamoto

A fiery young girl being pursued by the Doctor's henchmen.


The leader of the Mimiga village, and Toroko's brother-figure.


A strange—if happy-go-lucky—monster under the command of the Doctor


A young witch under the command of the Doctor.

The Doctor (full name: Dr. Fuyuhiko Date)

The cruel tyrant of the island. Formerly the research group's medic, he discovered the Demon Crown and went mad with power.

    Important Characters 


A young Mimiga and Sue's friend.

Kazuma Sakamoto

Sue's older brother.
  • Butt Monkey: He is mostly seen trapped in a warehouse whining, and his younger sister Sue beats the crap out of him often.
  • Dirty Coward: Of all the characters, Kazuma is the most cowardly. At the beginning of the game, he's begging for help from his little sister, who is in actual danger. Near the endgame, he decides to abandon the island, leaving behind his sister and the rest of his companions. Accepting his offer to go with him leads to the game's worst ending.
  • Distressed Dude: He's first met locked up inside a Grasstown shelter.
  • Eyes Always Shut
  • Mr. Fixit
  • Pointless Band-Aid
  • You Gotta Have Green Hair


An old lady who lives in the Sand Zone. She has five lost puppies, and requests that the hero find them for her.
  • Chekhov's Gunman: She is Ballos' sister, and the one who sealed him away after he went out of control. She is also Misery's mother.
  • Miniature Senior Citizens: She's the same height as the hero, who's half the height of most humans.
  • Retired Badass: Again, she sealed Ballos, assuming he was powerful back then as well, that must have required really strong magic.


A cowardly engineer transformed into a Mimiga.

Professor Booster

The former research party's technician.
  • Jet Pack: He gives one to you over the course of the game.
  • The Professor: Of course.
  • Red Herring Mole: Professor Booster appears as a grumpy-looking, old scientist in a white coat wearing opaque, signal red glasses. It doesn't help that the game's main antagonist throughout the story is also a doctor in a white coat. Nonetheless he never switches sides,  and even stays loyal until his death in one continuity of the game, giving away an item to the protagonist with his last bit of strength that he could otherwise have used to save himself.
  • Violation of Common Sense: There is a point where he falls and gets major injuries. Ignore him completely and he will come back alive and well with an improved Booster 2.0.

Momorin Sakamoto

The mother of Sue and Kazuma.


Once Jenka's kind and loving brother, now a mad sorcerer trapped in the depths of the island.



A frenzied Mimiga. He kidnaps Sue in the Egg Corridor. It is implied he was the caretaker of the Dragon Eggs, as the 3DS version reveals the ID Card is his.
  • Degraded Boss: Reappears on The Balcony as a slightly stronger regular enemy, jumping higher and firing off more projectiles. Whether it's actually him, or just another frenzied Mimiga that looks and acts like him is up for debate.


A robotic monster that lives in the Sand Zone. Prior to its appearance, Misery was going to fight the hero. Upon noticing him about to rise from the sand, she leaves dealing with the hero to him.

Pooh Black

A "ghost" that haunts an old clinic in the labyrinth.
  • Kaizo Trap: After killing him, it is still possible to take damage and even die if you touch his remaining bubbles.
  • Palette Swap: Of Balrog, for the most part. There are subtle differences between Balrog's sprite and Pooh Black's.
  • Spell My Name with an "S": His name is sometimes spelled "Puu Black."

Monster X

A large "X" shaped tank that appears in the Labyrinth. Upon defeating it, the player can see who was driving it: A cat.

The Core/Undead Core

A large, multi-segmented monster that lives in the center of the island. Its power keeps the island floating in the air. If it is destroyed, the island will fall. After defeating it the first time, it's about to be destroyed, but Misery and the Doctor arrive and save it. It becomes the Undead Core and is a possible Final Boss.
  • Boss Bonanza: In the second fight, it comes after Misery and the Doctor.
  • Climax Boss: The second fight. If you don't meet the qualifications for the True Ending, though it becomes the Final Boss
  • Disc One Final Boss: The first fight.
  • Final Boss: Its second fight is this for the Normal ending.
  • Load-Bearing Boss: It is keeping the island floating in the sky. More specifically, it keeps Ballos's magic from making the island fall. Misery is understandably pissed off at you when you almost destroy it for the first time.
  • Nightmare Face: Is The Faceless during it's first battle but when The Doctor possesses it, it gains a few nasty looking faces indicating when it's vulnerable and what attack it's going to use.
  • Underwater Boss Battle: In the first fight, it can raise the water level in the chamber in an attempt to make you drown.


A masked fish that lurks in the Waterway.

The Sisters

A pair of dragons that attack the hero if he decides to pick up the missile upgrade in the destroyed Egg Corridor.

Ma Pignon

A mischievous mushroom that lives in Mimiga Village's graveyard. He gives the hero the Mushroom Badge if he saves Curly and tells him about her amnesia. The badge itself does nothing; the actual cure is Ma Pignon himself. However, he won't go down without a fight.

The Red Demon (a.k.a. The Red Ogre)

A red monster that appears in Last Cave (Hidden). It's implied that this is the creature that Arthur drove away from Mimiga Village.
  • Bonus Boss
  • Chekhov's Gunman: Briefly mentioned earlier in the game.
  • Giant Space Flea from Nowhere: Barely averted, since he gets a mention. His appearance in the Last Cave (Hidden) is rather sudden, though.
  • Palette Swap: Of the generic enemy Droll.
    • The plus version takes it a step further and gives him a headswap as well, making him look more like an actual demon.
  • Spam Attack: Like the Drolls he throws blades, but he throws three at a time, pause, then three more, rinse and repeat.

Heavy Press

A giant Press. It appears as a boss in Sacred Grounds.


A mysterious machine within the Wind Fortress that produces clones of Curly.
  • A.I. Breaker: The Mooks it spawns won't attack you when you stand on the block at the very left.
  • Bonus Boss: Boss of the Wind Fortress.
  • Mook Maker: Curly clones, to be precise.



Mimiga Village's second-in-command. He guards the entryway to the graveyard.


A resident of Grasstown. He lost his key, so he asks the hero to find it for him.


A resident of Grasstown. The fireplace in her house contains a passageway that leads to the second half of Grasstown.
  • Event Flag: To pass through the fireplace, you need a jellyfish juice. Said jellyfish juice comes from a giant jellyfish that appears only when you try to pass through the fireplace.
  • Optional Sexual Encounter: Sleep in her bed after she mentions jellyfish juice, and the hero will wake up with her sleeping next to him. He obtains her lipstick, which is useless outside of getting 100% Completion. This also works in Curly Story. She gets her rouge.
    • Bowdlerization: Thankfully, it's an amusing example of this trope. Sleep in her bed in the 3DS remake, and you'll wake up to find her sleeping on the floor. You'll still get her lipstick, though.


A robot that oversees the power room in Grasstown. He helps break Kazuma out of a house.