"Más y Menos" (stylized as "Mas Y Menos") is the forty-eighth episode of Season 1 of Teen Titans Go! and the forty-eighth episode overall. It first aired on 16 April 2014 on Cartoon Network.
Más y Menos visit the tower to get superhero lessons from Robin. The twins become fast friends with the other Titans, but Robin wants them to focus on the training.
Robin watches the other Titans through binoculars and notices that Beast Boy and Cyborg are playing video games, Starfire is eating a piece of pie, and Raven is standing near a demon. He throws four birdarangs and they destroy the controllers, pie, and entraps the demon. When he is questioned by Raven, Robin explains that two young impressionable superheroes will be arriving at Titans Tower and he has offered to mold them into future crime-fighters so they can be like him, and not the other Titans. The elevator dings and Robin prepares to greet them, but the twin speedsters Más y Menos introduce themselves. They get to know the other Titans, calling Starfire pretty, Beast Boy funny but smelly, Raven scary, and joke with Cyborg. Beast Boy finds a clip on DCU Tube where Aqualad explains that Más y Menos can only go fast when they touch and that they only speak Spanish. Más y Menos add on that if they don't touch, their energies will build to dangerous levels. Robin interrupts by reminding them that he's their mentor and claims that the Titans can't teach them anything. He grabs hold of the twins and uses his grappling hook to exit.
In Robin's room, Robin begins instructing Más y Menos, but tells them that his only rule is no hand-holding. Menos attempts to remind Robin of their powers, but Robin interrupts him and says that he doesn't like his negative attitude. He further says that he won't let him jeopardize Más' future with his shenanigans. The twins look at their power levels and see that it has risen by one bar, worrying them. Robin's first lesson is A.B.S. which he says stands for Always Be Suspicious as villains could be lurking in every corner. Beast Boy greets Más y Menos, but Robin claims that Beast Boy is an impostor and whacks him with his staff. Más y Menos decide to save Beast Boy and stop Robin mid-swing. Robin realizes that Beast Boy could be real and takes a tooth to run a DNA analysis to make sure.
Later, Cyborg, Beast Boy, Raven, and Starfire are eating pizza which Más y Menos chide them for as they believe they eat pizza too much. They take the pizza and gift it to the Teenage Mutant Ninja Turtles before returning to the tower. They say that the Titans have expand their palates and begin cooking tamales for them to try. Cyborg is reluctant to try one, but Más y Menos tell him that to grow as a person, he needs to try new experiences. He tries the tamale and calls it good whereupon Más y Menos begin listing off Los Tamales de Guatemala. Beast Boy says he can't believe there are many kinds of tamales when Robin enters the kitchen, demanding to know what is going on. Starfire explains that Más y Menos has introduced them to the new experience of the tamales, but Robin yells that that stuff doesn't matter as he's trying to teach them what he thinks is important: being suspicious and punching things. He grabs Más y Menos to continue their instruction and separates them when they try to touch hands.
Robin teaches Más y Menos about the superhero pose which he claims is the most important lesson, but Menos believes that a pose is superficial and Más agrees, claiming the most important part of a hero is the purity of his heart. Robin thanks them, assuming they complimented him and gives them a pop quiz where they have to name the superhero pose. While they both identify each pose quickly, Robin praises Más and yells at Menos to get his head out of the clouds. Later, Más y Menos are watching the Titans play a video game, but they each control their character separately. The twins instruct them to work together and demonstrate. The Titans follow their example and succeed in winning the video game. Nearby, Robin dryly claps and says that what they did was a waste of time and energy. Beast Boy defends Más y Menos by calling their advice a life lesson, but Robin claims that the twins can't teach them anything as they're only kids, upsetting them. Cyborg says that Más y Menos taught them about working together which Robin deems stupid. Raven says that they should mentor Robin and claims he might learn something from them, causing the six to start laughing. Robin theorizes that Menos is causing him to look bad and decides to separate him from Más.
While Menos is playing video games, Robin lies to him by saying Más has been afflicted with food poisoning from a bad tamale and that he has to go the hospital immediately. While Menos is gone, Robin begins teaching Más how to act like him. He demonstrates beating up a villain, approves a costume change that resembles him, and teaches him how to use his grappling hook. In Robin's room, Más demonstrates what he learned and spikes his hair to resemble Robin. Beast Boy and Cyborg enter asking for Menos, who Robin says isn't his problem anymore. Beast Boy asks if Robin did something to Menos, but he nervously denies the accusation and heads out to find him. That night, Robin, dressed as Menos, enters the living room and Raven notes his arrival. Cyborg asks if he's seen Robin, but Robin nervously denies. Más spots Robin and claims that he isn't his brother. Robin tries to prove his is by touching Más' hand, and runs but hits the elevator and falls.
At that moment, Menos returns with a balloon and teddy bear for Más and he says that Robin tried to keep him away from Más. Robin sits up and his helmet comes off, exposing his identity to the Titans. He reasons that he tried to separate the two so that he could have Más' undivided attention. Raven says that Robin should feel ashamed of himself, but Robin says he isn't as Más now resembles him. He high-fives Menos' hand, but after being separated for so long, the energy reaches dangerous levels and they're unable to separate. They begin bouncing off the walls until they crash through the side of the tower. Robin informs Beast Boy of this and Raven asks what would happen if they're unable to stop them. Cyborg finds a clip on DCU Tube that shows the Earth will explode. Robin says that Menos should have warned them and orders the Titans into action.
The Titans station themselves around Jump City and Robin spots the speedsters through his binoculars. Cyborg chases after them in the T-Car, but they make a sharp turn and the T-Car skids. He reports that he lost them. Beast Boy is eating ice cream when Más y Menos run past him and he transforms into a cheetah to catch them, but tires out and they speed up. Starfire flies above them, but reports they're too fast for her and informs Raven that they're approaching. She sees them and tries to recite her spell only to be spun out of control as they run past her. Robin tracks the two and decides it's his turn. He jumps into a street in front of Más y Menos and attaches his staff into the road. The two collide into him, unleashing an explosion in Jump City.
The next day, Raven tells Robin that he has saved the day. Beast Boy claims that Robin mentored them well and Starfire adds on that he taught them a lesson. Robin, in a cast and crutch, says he tries. Cyborg claims that the lesson was heroes need to sacrifice themselves for the greater good. Robin cuts off Cyborg, announcing that the lesson was to put yourself in the spotlight and reap the glory. He strains himself while trying to pose and cries that the Titans never learn anything.
Más can be seen using Spike hair gel which was established as the hair gel that Robin uses in "Starfire the Terrible".
Second time Robin dresses up as a super hero from the Titans East ("The Date").
There were many images of Batman, Superman, Wonder Woman, Aquaman, and Flash in Robin's poses, Más' costumes, and in the Titans' video games.
The clip explaining Más y Menos' powers is derived from the 2003 Teen Titans episode, "Titans East - Part 1".
The turtles referenced the original incarnations of the Teenage Mutant Ninja Turtles who all originally wore red headbands.
There is a Darkseid plushie in the living room of Titans Tower.
The Titans are playing a Justice League of American game with the villain Brainiac.
When the Titans watch the video of Más y Menos on the Internet, one of the suggested videos shows a crying baby with the title of "TEEN TITANZ NO!!" This could be a reference to the Teen Titans fans who miss the original series/dislike the new series. There is also clips underneath about Young Justice and Green Lantern: The Animated Series.
The website they are on is a reference to YouTube.
Más said "Whack" in English instead of Spanish.
When Menos returned, Más was in his original appearance, but after Robin reveals his plan to separate the two, his hair is spiked.
The Image Gallery for Más y Menos (episode) may be viewed here.