From Glitchtale Wiki
|Wing Din Gaster|
|Soul/Trait||Boss Monster Soul|
Dr. Wing Din Gaster was a member of The Wizard Council before the events of the Human-Monster War, in which the monsters were sealed beneath Mount Ebott. Wanting to free the Monsters from their imprisonment, the royal scientist focused on soul experimentation, which eventually led to him falling into The Void. For an indefinite amount of time, he remained trapped in limbo, forced to watch every timeline simultaneously. He is eventually rescued by Sans, one of his two children.
- 1 Appearance
- 2 Personality
- 3 Powers and Abilities
- 4 History
- 5 Trivia
Gaster is a male Boss Monster that has a skeleton-like appearance. His two eye sockets have permanent scars coming from them. Gaster typically wears a large black coat over a lighter shirt, with brown pants and shoes. He sometimes wears a white lab coat when performing experiments inside his lab.
When triggering magic, his eye color depends on the status of his two children. When Sans and Papyrus are alive, he'll have both a red and light blue eye. If one were to die, that corresponding color will fade away. If both were to die, his eye color will return to its original purple.
Gaster's personality is initially that of a cool, charismatic skeleton. He is a kind person who gives people respect, and cares for his friends and family's well-being. He is a brilliant man, capable of calculating strategies to win battles.
When in The Void, Gaster's sanity plummets to the point where he will kill anyone, including his own son, in order to return. After being rescued from The Void, many of his memories are repressed.
His repressed memories’ resurfacing adds to the deterioration of his mental state, as his insistence to avenge his son has resulted in constant failures. This buildup of rage and mistakes eventually leads to his breaking point in Animosity.
Powers and Abilities
- Chroma Hands: Gaster has seven hands that are each able to mimic one of the seven Human traits at a time.
- Red: Shoots a powerful red blast.
- Orange: Spawns explosive orange bombs in a desired area, that explode on command.
- Yellow: Rapidly fires yellow projectiles.
- Green: Summons a green shield which consumes magic to strengthen and maintain.
- Cyan: Fires a string used for restraint, as well as flinging the captured victim around.
- Blue: Spawns a buzzsaw that flys out towards its intended area.
- Purple: Creates purple spikes that damage the opponent, while also slowing the effects of healing magic.
- Gaster Blasters: Blasters that fire powerful energy from their mouths.
- Healing: Gaster has the ability to cast Healing on others and accelerate their recovery time.
- Telekinesis: Gaster can move people and objects from a distance.
- Teleportation: Gaster can teleport himself and others from one place to another in an instant. This ability is lost in Do Or Die.
- Monotone: All of the hands focus on one color, amplifying the power of his next attack by seven.
- Duality: Gaster's seven hands merge into two giant ones, along with him obtaining a large blaster.
- Polychromatism: The power of Duality, and the addition of seven smaller hands. It is the most efficient and least taxing version of Gaster's full power.
Gaster catches up with many monsters who came to see the commotion at the barrier. Afterwards, when Asriel breaks it, he steps onto the surface with everyone else.
During the first month of the Monsters' return to the surface, Gaster is recognized for his scientific works and begins expanding the CORE. As he explains to Jessica, doing so will eliminate the need to pay for electricity ever again.
After the reveal of Betty's unique pink soul, Gaster begins researching in an attempt to identify it. He finds nothing, however.
As requested by Betty's parents, Gaster allows her to stay at his lab for a short time. He persistently continues researching the pink trait but is still unable to find any clue whatsoever. He decides to take a break and reads The Tale of The Twin Siblings. However, upon reading it, he finally stumbles upon the origins of the pink soul: A Bête Noire with the soul of Fear.
Upon finding this information, he is too late to warn the others, and Betty soon kills an already weakened Sans. Gaster sees everything from Sans' perspective before the moment he died and immediately becomes filled with vengeance
After Sans' death, Gaster immediately looks for every piece of information he can find about the "Bete Noire" to avenge his son. Upon discovering that Determination is supposedly its only weakness, he goes on a rampage within his lab, his outlook on life greatly affected.
Eventually, Frisk meets with him, and soon after, the lab is attacked by pink blobs that had been planted by Betty earlier on. After seeing Frisk struggle to defeat the blobs, Gaster believes Frisk will never be able to win against Betty, and decides to do it himself.
Gaster and Sans both ran to escape, but a damaged pipe broke from its constraints and fell on them. Gaster was able to shove Sans out of harm's way, but couldn't save himself from being slammed off the platform into The Void. As he falls, the CORE begins to release blue plasma throughout the room, granting both Sans and Gaster the ability to teleport.
Gaster soon awakens thanks to Papyrus using healing magic. When Jessica explained that Alphys had a plan to kill Betty alone, Gaster panics in a rush to get back. Gaster tries to teleport to the scene with his damaged soul, only to lose the ability to teleport entirely. He calms down after hearing that Undyne went to save her. Gaster looks down and is surprised to see his hands covered in blood. He realizes that although Monsters shouldn't be able to bleed due to their lack of physical matter, Monsters living among Humans and eating Human-made food have allowed Monsters to gain a more physical form. With this new information, Gaster believes Undyne might attain her Undying form without melting.
Later on, Gaster is recovering on a couch while Jessica uses his control panel to access the AMD's surveillance equipment. Gaster is upset by this and questions who allowed her to use his device, to which Papyrus responded that it was him who allowed it, annoying him further. Gaster appears surprised and almost impressed when Jessica warns everyone in the city of the soul-stealing Fear blobs, and tells the Humans to seek aid from nearby Monsters that could scare away the blobs with their magic.
After Frisk returns from the school, he asks the two adults about the others. Despite partially being at fault for withholding information about the nullifier, Gaster tells Frisk that Alphys was “in another body bag" because of Jessica. Frisk takes Jessica to a storage room to show her something, as Gaster stays.
Gaster is shown looking outside his window late at night, unable to sleep, reflecting on the previous day's events.
Later, Gaster feels Sans' sudden return and location when Betty uses HATE to revive him to fight the newly-powered Frisk. Papyrus rushes off to the scene, despite Gaster telling him to stay. Gaster then quickly gathers Asgore and Toriel so the three can follow Papyrus to rescue the others from Betty.
When the three Boss Monsters arrive at the scene, Betty uses a HATE dome to prevent them from interfering. Everyone witnesses Sans break free of HATE's control when the dome is destroyed. After Betty escapes, Toriel explains to a concerned Gaster that Sans is in some form of coma after having nearly all his magic drained, and that he might never wake up. However, Papyrus assures Gaster that Sans is strong and that he will eventually awaken.
The others arrive home to see Jessica and Undyne being attacked by Fear blobs that managed to break in. A blob manages to stab Jessica in the chest before Asgore kills it with his trident. After hearing that she'll live, Gaster and Papyrus take Sans to Gaster's laboratory in the underground. Gaster initially has trouble remembering the password due to his memories being suppressed from his time in The Void, but remembers after a quick flashback.
Gaster brings a "Monster History" novel and begins explaining his findings, swiftly dismissing Asgore's concern for Sans' well-being. Gaster informs everyone that if a bond between Asriel or anyone corrupted with HATE is strong enough, the victim can break themselves free of its control. Gaster predicts that Betty will likely attack a highly-populated area like the school or the arena to gather more souls.
Asgore proposes Gaster and Undyne both go to the school to defend it, but he refuses, saying he will remain at the house because Papyrus was unfit for fighting. Unaware of her lacking confidence, Gaster believes Undyne will be more than capable of handling the school without his aid. An explosion then erupts from the city, causing everyone to go to their posts.
While trying to find a way to reverse Sans' state, Frisk and Toriel enter the house with a severely wounded Asgore. Gaster is noticeably concerned for his friend's well-being, before Frisk requests to speak with him privately.
Frisk approaches Gaster about wanting to reactivate an old experiment that will allow the former to enter The Void to fix his "glitching" condition. Gaster agrees on the terms that Frisk donates samples of his blood to him so he can use it to save Sans. Gaster is hesitant in sending Frisk away with low chances of return, but accepts. Gaster wishes Frisk good luck, as he transports him to The Void.
Along with everyone else, Gaster's memories of Frisk are all switched out with Chara after Frisk gives his soul to him and presses the REPLACE button. This sends Chara back to the surface, and erases Frisk and the game itself from existence.
Asgore and Toriel had found Gaster and Chara unconscious in the lab, both of whom were unable to recall what they were doing before waking up. As Gaster is beginning to discuss how they would deal with Betty and Asriel, he notices the blood vial from the sample he took from Frisk, and rushes to his lab to experiment with it.
Additionally, rather than Sans painlessly passing on, the Determination inside him will force him to experience every lingering moment of his death. Gaster becomes devastated upon realizing that all he did was make everything worse again, and that he lied to Papyrus for nothing.
Papyrus tells Gaster that the attack hurt, but not nearly as much as everyone treating him like he is blissfully unaware of the situation. Papyrus tells the older monster that he can do whatever he wants, but he refuses to let him go through his burdens alone, and pleads with him to let him help. Gaster claims he doesn’t deserve Papyrus' help and that all he had done was make things worse through constant mistakes. Papyrus then embraces Gaster, telling him that the only mistake he can make is not asking for help.
Deciding that Papyrus is capable of defending the house without him, Gaster volunteers to accompany Jessica on her way to the city, which the younger skeleton happily accepts.
Gaster later eavesdrops when Ronan Cass explains Rave and Jessica's history to Undyne. He learns that the City's former leader was Noah Rutrow, Jessica's husband and Rave's older brother.
Gaster is shown to be concerned about the ground shaking, while patrolling the streets searching for Fear blobs. After there being no traces of blobs on the streets, a creature called "The Kumuzilla" rises from underneath the ground and towers over a horrified Gaster and Jessica.
Upon seeing his Boss Monster soul, Kumuzilla recognizes Gaster as a threat and attempts to kill the frozen monster with a massive tentacle. Jessica grabs Gaster's arm and the two try fleeing to safety, but Gaster is forced to block the attack with his green Chroma hands. As The Kumuzilla heads toward the school to collect more Human souls, Ronan contacts reinforcements to help stop it.
Gaster and Jessica wake up buried deep underneath the rubble, relatively unharmed, but Gaster is pinned under massive rocks. The roof begins to shake, indicating that it will soon collapse on both of them. Jessica reveals that she has one of Alphys' teleporting devices they could use to escape, but a disheartened Gaster tells her the device will only transport one person, and that she should use it to leave him behind.
Refusing to abandon Gaster, Jessica tries to release him from the rock, while Gaster frantically tells her to leave it. Despite his pleas, Jessica stubbornly persists in saving him, even going as far as cracking her already damaged soul when trying to use her gun. Despite not being fully ready for it, Gaster tells Jessica that he forgives her for everything she's done in an attempt to get her to save herself.
Finding himself alone inside Rave's lab, Gaster weeps silently with the realization that yet another person perished because of him. He raises his head with a new resolve to not let the former leader's sacrifice be in vain, and to get his revenge against Betty once and for all.
Gaster glances back and sees a younger and happier version of himself in Rave. He then tells the Human scientist that he looks smart and can figure it out. With these final words, Gaster goes to confront Betty, leaving a confused Rave alone.
Betty eventually grabs Papyrus in a massive fist and starts to crush him in an attempt to keep the other two back, but Sans appears behind her and blasts her away. Gaster begins healing a wounded Papyrus. Seeing his brother injured, Sans rises in the air and summons a massive quantity of Gaster Blasters with his Gaster Blastermination.
Realizing what will happen next, Gaster calls out to Sans to stop, as Betty uses Rhabdophobia, turning the blasters against him. Refusing to lose his son again, Gaster uses his Duality hands to protect Sans from the blasters.
Papyrus collapses to his knees and begins to cry, as Gaster begins to remember all of his efforts to save Sans, and how it was all pointless in the end. Gaster then snaps entirely, just as Bete launches an explosive projectile at Papyrus. Shielding him with a Kindness Chroma hand, Gaster proceeds to subconsciously reverse the link between himself and his son, sending the magic formerly flowing into Papyrus back into himself. Gaster then challenges Bete, prompting her to attack him, as he quickly begins to counter all of her assaults.
The link then returns to normal, and part of Gaster's magic once again begins to flow into Papyrus. Gaster then falls unconscious, and Papyrus catches him as he drops to the ground. However, soon after noticing the remains of Bete crumbling away, Papyrus comments that he feels something is wrong, and attempts to leave.
Due to not being entirely vaporized, Bete's corpse is consumed by HATE. As the being awakens, it creates a dome that casts an illusion on Papyrus, making him think that Gaster has died in his arms. Papyrus, paralyzed in both grief and fear, can’t move as HATE raises a blade to kill him. However, Chara is able to jump in the way and take the blow. Asriel arrives behind him, as Papyrus notices Gaster still alive in his arms. Chara then challenges HATE to a final battle in the city.
Gaster is seen still unconscious from the events of Animosity. His body is taken to safety by Papyrus and Asriel before Chara and HATE start to fight.
He adds that Papyrus has been the sole reason that Gaster had managed to escape his darkness. Gaster concludes by stating that he’s proud of who Papyrus has become, requesting for his son to never change his ways. Papyrus, overwhelmed by emotion, subsequently rushes to tearfully hug Gaster, who easily accepts.
Gaster is later seen alone in a room, suffering from mental instability. As he looks up towards the room’s mirror, a monstrous figure begins to form behind him. It clutches his shoulders, as the mirror begins to crack. Then, it is revealed to be an un-composed creature resembling Gaster.
- Gaster was the Royal Scientist of the Monsters and Humans.
- Gaster is the only known Monster to have both Chroma magic and blaster magic.
- Gaster becomes fatigued when his Chroma hands are forcibly broken. This is because he puts considerable concentration into them, and significant magic is taken away if he doesn’t manually disperse them.
- Gaster’s purple Chroma is gone due to a tragic event in the past.
- The Reason he is able to use it in Animosity is due to him draining Papyrus' soul of magic to temporarily restore it. However, once he re-established the Boss Monster link with Papyrus, he loses access to it again.
- Some of Gaster’s abilities, such as the Void substance and the unnatural purple Chroma, are abilities he obtained through his existence in The Void. However, Gaster no longer possesses these capabilities following his return in Your Best Friend. He can, however, still block game buttons.
- Despite the similar appearance, the Void substance is not actually HATE.
- The unnatural purple Chroma, that was capable of duplicating Sans' attacks, is much different from his normal purple Chroma. As shown in Animosity, his actual purple Chroma is capable of making purple spikes that slow healing magic.
- Because a large amount of Gaster's memories were suppressed after his experience in The Void, he doesn’t recognize the illusion of Agate when she drops Betty off at his house in Dust.
- If he was aware of Betty's ability to use Rhabdophobia, it's unlikely he would have lost in his first fight with her.
- When Gaster's magic is stolen by Betty in Do or Die, the reason he couldn't summon anything more was because Betty was still using his own magic to supply it.
- Gaster would have likely forgiven Jessica at some point, but he wasn't ready when he said it to her near the end of Game Over Part 2.
- Excluding the nap in Game Over, and the time he spent unconscious, Gaster hasn't slept once throughout Season 2.
- Gaster could have still defeated Betty without draining Papyrus' soul, but he was so outraged by Sans’ death, that he wasn't thinking of the side-effects.