Matilda the Armadillo

Matilda the Armadillo is a young Mobian armadillo and part of the Dark Egg Legion stationed in the Great Desert.

Robian
Matilda was one of the many victims of Roboticization during the First Robotnik War; as a mindless Robian, she was among those set against Sand Blast City. However, when the Bem performed a mass deroboticization of almost all Robians on Mobius, she suddenly found herself returned to normal without knowing what had happened. The former Robians attempted to settle in Sand Blast City before getting ready to return home; however, the Sand-Blasters didn't trust them and treated them as second-class citizens, driving them into the badlands. Wanting to protect the group, Rabbot Beauregard Rabbot was forced to approach the Eggman Empire for help; all of the former Robians received cybernetic upgrades and became a new chapter of the [Egg Legion|Dark Egg Legion].

Protecting the Oil Ocean Refinery
In exchange for being Legionized, the new DEL chapter was ordered to run and protect the Oil Ocean Refinery for Eggman. They made a new home for themselves in the badlands, constructing rough settlements and weapons. While Grandmaster Beauregard showed his niece Bunnie "Rabbot" D'Coolette around the settlement, he was interrupted by Matilda, who was carrying a large supply crate several times her size with one hand. She calmly asked him where he wanted it placed, addressing him as "Baron" as many of the chapter do. The next morning, the Legion headed out for the Oil Ocean Refinery in order to protect it from the Sand-Blasters who hoped to take over the facility for themselves. Matilda piloted the Legion saucer carrying Beauregard and Bunnie; she reacted only mildly when Sonic the Hedgehog suddenly attacked, punching the Baron in the face. Bunnie retaliated on instinct, throwing Sonic towards the refinery.

While Sonic and Bunnie fought inside the refinery, Matilda and Beauregard (along with the rest of the Legion) parked their saucer outside and watched the battle. Matilda calmly asked how long they would hold their position, and Beauregard replied that they'd wait until Bunnie had the situation under control or she needed their help. Later, Matilda noticed that the Sand-Blasters, who had also been waiting outside the refinery, had started to move in; Beauregard ordered her to power up the saucer so they could follow. Matilda did so, idly commenting that hopefully they'd be able to stop the fighting before the refinery was damaged even further; this comment caused Beauregard to realize that Sonic and Bunnie's fight was a ruse, allowing them to attempt to destroy as much of the refinery as possible so as to both prevent the Sand Blasters from taking it over as well as put a stop to Eggman's schemes. Eventually, a massive explosion rocked the refinery, and the Legion was forced to retreat.

Personality
Matilda is very calm, polite and taciturn. She's a hard worker and obeys orders without complaint and rarely shows emotion - almost to the point of appearing constantly deadpan.

Trivia

 * The name Matilda carries a meaning of "might" or "strength."
 * Matilda is possibly the missing sister of Mighty the Armadillo.
 * Concept art of the character shows one version of her cybernetic arms that bear a strong resemblance to those of the titular mecha from the anime The Big O.