Characters from Doraemon: Nobita and the Tin Labyrinth.
Hotel Burinkin
Sapio and Tap
Sapio is the boy, and Tap is the bunny.
A young boy and his alien bunny rabbit living in Hotel Burinkin. Nobita and Doraemon accepts their invitation to the Hotel, only to discover it's a front for recruiting humans to help them in their fight against hostile robots whom had taken over their home planet of Chamocha.
- Covert Distress Code: The advert for Hotel Burinkin which they broadcast to other planets serves as this.
- Distaff Counterpart: Related to the substitute below, Tap seems like a male version of Chammy, being an alien bunny rabbit sidekick who's the pet of a human.
- Fish Eyes: Tap's eyes are always pointed away from each other, in an up-down motion.
- Mad Eye: More often than not, Tap's eyes seem to enlarge and shrink at random, usually when things start getting really bad (such as hearing the footsteps of robots coming at him while stranded in the labyrinth).
- The Needs of the Many: Sapio, upon realizing he's trapped underground alongside Tap, Nobita and Shizuka, decide he shouldn't trouble the earthlings any further and should face the robots all by himself, quickly having Tap kick Nobita and Shizuka through the Burinkin portal into Tokyo before sealing the exit. Unfortunately this ends up banishing them permanently from Burinkin - which means Nobita and Shizuka would never see Doraemon, Suneo and Gian ever again. Luckily Nobita found a way back.
- Rascally Rabbit: Tap can be pretty lively and hyperactive at times, compared to Chammy the other rabbit supporting character from earlier.
- Rubber Orifice: Tap's mouth can expand to fit objects far wider than his jaws, notably the briefcase leading to Chamocha.
- Stomach of Holding: Tap's stomach, which can hold a storeroom's worth of food. He can regurgitate everything he swallows at will.
- Suspiciously Similar Substitute: A young boy and his alien bunny rabbit sidekick who befriends Nobita and gang sounds a lot like Ropporu and Chammy.
- Young and in Charge: Due to his parents being captured by Professor Napogistra's army, Sapio is left in charge of the entire hotel's operations.
The Manager and the Clown
"Welcome to Burinkin Hotel!"
Some of the robot staff in Hotel Burinkin.
- Flat Character: They only exists to fill up space.
- Token Heroic Orc: Among the few non-hostile robots from Planet Chamocha in the story.
The Hotel Burinkin Automobile
A wind-up car tasked with transporting guests to the hotel.
- Advertised Extra: The manga's cover and promotional materials for the movie makes him seem like a major character, even though the automobile was only in two scenes.
- Clockwork Creature: It's controlled by a clockwork key sticking out of it's rear.
- Flat Character: Again, a character meant to fill up space.
- Sentient Vehicle: Somewhat like Buggy, although this one doesn't have much of a personality.
Duke Galion Burinkin and Duchess Burinkin
With their son.
Sapio's parents, a pair of scientists and researchers leading the human resistance until their arrest with most of the humans.- Computer Virus: One developed by Sapio's father to take down the robots, but it only works when inserted into Professor Napogistra's mouth.
- Good Parents: They kept their son, Sapio, in the Hotel while surrendering themselves to the robots in order to keep Sapio safe.
- Happily Married: They are certainly inseperable, even as they await execution together.
- La Résistance: They led the local human resistance opposing the robot takeover.
- Parents in Distress: They were arrested together with most of their resistance forces by Professor Napogistra's robots after being caught trying to stage a coup, and are barely half a day away from their execution when Sapio and Shizuka infiltrates their prison at the end and saves them all.
- Properly Paranoid: Sapio's father, Garion is concerned over the humans of Chamocha becoming too reliant on the robots, only for the Mayor to turn him down. Turns out his worries are justified once the robots took over.
Mechatopia
Professor Napogistra
"And then the humans of Chamocha made Professor Napogistra to enforce their control on the robots, and from that day onwards everything goes wrong..."
The robotic overlord ruler of Mechatopia, who realized humanity is weak and overly-dependent on robots and decides to launch a robot uprising. The robots are victorious, and most of the humans who survived are now in their detention cells while Napogistra plots for an en-masse execution.
- A.I. Is a Crapshoot: After Professor Napogistra develops a superiority complex over the humans, he then turns the machines on their creators.
- Big Bad: The powerful robotic AI dictator and tyrant of Mechatopia, who enslaved all humans in the city in the backstory and is hunting down Sapio and the other human escapees.
- Evil Gloating: He enjoys doing this time-to-time, mostly as he plots the mass execution of humans.
- My Brain Is Big: His head takes up more than half of his body, which makes sense because his brain is a neural link to all the hostile robots dominating Mechatopia.
- Keystone Army: Once Mini-Dora managed to implant the disc developed by Sapio's parents into Napogistra (via Eat Me), within a few minutes Professor Napogistra began going haywire. The rest of his army follows.
- Kill All Humans: His last resort after having all the humans imprisoned, where he will order their execution once all is said and done.
- Mad Scientist: Creates most of the facilities in Mechatopia for the robots, and uses them to hunt all humans on sight.
- Mister Big: A robotic overlord of rather diminuitive stature.
- Named After Somebody Famous: Repeat after us - Professor Napo-gis-tra.
- The Napoleon: More than a head shorter than a regular human, and is a ruthless robotic dictator willing to enslave the humans who made him. Heck, the first part of his name even lampshades it!
- Robot War: Started one in the backstory, which is a Curb-Stomp Battle with the robots on the winning side thanks to the humans of Chamocha becoming overly reliant on the robots for everything in their lives.
- Squashed Flat: In the manga, after Napogistra malfunctions and falls down, a random tank runs over him for good measure. This isn't in the anime however.
- Technopath: Briefly displays the ability to control machines from afar, by gazing at them. He didn't use this ability on Doraemon because he underestimated the latter dismissing Doraemon as a "harmless kid's toy".
- Turned Against Their Masters: Instigates a robot uprising against his creators.
- Underestimating Badassery: In a moment that crosses over with Too Dumb to Live, when Nobita and Doraemon confronts Professor Napogistra, the Professor sees Doraemon armed with a slingshot and starts going into another bout of Evil Gloating, on "What a couple of Brats with Slingshots can do to him..." Doraemon then uses the slingshot to fire the disc developed by Sapio's father, together with a Mini-Dora, into Professor Napogistra's mouth.
