After the fight, they joined the other Titans and Honoraries in Titans Tower and in the subsequent recapture of Doctor Light. Promptly, they began fiddling with Professor Chang's machine and succeeded in uncovering its works, un-freezing the other captured Titans and then flash-freezing any defeated villain before they would recover. When Titan reinforcements arrived and joined Beast Boy's team in battle, Más was finally able to reach his brother and unthaw him from flash-freezing via their sibling's bond. Más managed to escape and regrouped under Beast Boy's leadership along with Pantha, Herald and Jericho, and though bereft of his superpower, he bravely entered battle even against stronger opponents like Adonis, Punk Rocket and the Puppet King. However, they only managed to capture Menos. At first they were pursued by Johnny Rancid only, but as they managed to escape from him, Cinderblock struck them from underground. When pursued by the Brotherhood of Evil, the twins were hunted and separated by Johnny Rancid and Cinderblock. Más y Menos have continued to serve with the Titans East ever since. As the rest of the Titans finished their tasks, the citizens of Jump City cheered for these stranger heroes.

The speed shot the two twins across town, and they were able to push the buttons in time. However, they weren't ready to give up and the two ran up top of the bomb, spun super fast, and let go of each other. Mas y Menos were to push two buttons across town from each other at the same time to deactivate a bomb, and since they couldn't activate their power, they struggled. These tests were televised, and if the Titans failed, the city would be devastated. He made an ultimate Titan's challenge for the Titans East, and they were all transported to a different part of the city.

However, Control Freak wasn't going to give up. After stopping Andre Le Blanc from robbing the bank, and saving random people throughout the city, they realized how lesser known they were.

During the brawl, the twin's got zapped by Control Freak's remote, making them speak English. He claimed that his new supplies would stop these 'Titan wannabe's', but his machines proved useless against them. When Titans East got into the tower, they were separated throughout the tower by Control Freak. However, unknown to both groups, Control Freak zapped himself into the tower, seeking revenge on the Teen Titans, only to find them gone. Robin, Starfire, Beast Boy, Raven, and Cyborg were on a mission trying to stop the Brotherhood of Evil, and because of that, they couldn't watch over Jump City, so Cyborg asked Titans East to look after the city for them. After coming back to their senses, Más y Menos swiftly developed a crush on Starfire, which endangered their brothers' bond a bit. Blood managed to capture the entire lot, but was finally defeated by Cyborg and jailed. The Teen Titans, summoned by Cyborg, interfered and battled the brainwashed Titans East. Without the asisstance of their teammates, the twins were captured and, subjected to Blood's mind control, became his new 'students.' In order to augment his mind control and to find out what had enabled Cyborg to resist his mental powers, Blood decided to convert the Titans East into cyborgs. Más y Menos aided in the team's first takedown of the villain Steamroller, but when Brother Blood and his robot troopers attacked the tower soon afterwards, the Titans East panicked and split up, each fending for himself, herself, or (in the twins' case) themselves. Cyborg, who had originally come from Jump City to help outfit their tower, decided to give them a hand in getting more organized as a team. Initially, the twins were - by necessity - the only Titans East members who worked as a team, but even then they still got into the way of the others or were hindered themelves. They are first seen in the episode Titans East, where they were helping Speedy, Aqualad, and Bumblebee build the Titans East tower. Both are about twelve years old and come from Guatemala, and even though they had not learned to speak English at the time they came to America, they are perfectly able to understand it. How the twins came to the attention and enlistment into the group which would become the Titans East remains unknown.

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