Marty

Marty (マーティ) is a character from the Rockman X manga. She is a tsundere mermaid-like Reploid created for aquatic rescues, who appears to harbor a crush on X.

Rockman X
X found Marty stuck into a Anglerge and saves her, and as thanks she guides him in safe areas of the ocean, but was actually taking him to dangerous areas to Launch Octopus drain his energy. She was helping Launch Octopus because he promised he would not cause harm to the locals if she did so, but after knowing he would betray her, she helps X defeat him. Her body was destroyed by Launch Octopus during the fight, but the part with her data wasn't damaged and she survived. She asks X to build a new body for her after defeating Sigma, and he does so later with a new appearance.

Rockman Z2
After being rebuilt, Marty is the leader of a group of pirates that use a flying ship, and they attack Bubble Crab's base to steal his treasures. Marty is shown to be able to change her legs between human and mermaid form.

Rockman X3
In the last chapters, Marty helps Dr. Cain during the Maverick outbreak that happens after X and Zero were captured by Bit and Byte and bound under a powerful drilling machine. Cain gave Marty the four power up chips and asks her to take them to X while the Maverick Hunters and her pirates distract Byte and his minions. She used a bike that can turn into a flying butterfly-like armor to reach the location X and Zero were in, but was confronted by Bit, who was watching them and almost killed her. However, Bit underestimated her and she managed to throw the chips at X shortly before the drill could reach him and Zero. With his new powers, X was able to break free and defeat Bit with ease, as well as Godkarmachine O' Inary and the Mavericks present.

Rockman X4
Marty and a member of her crew have a cameo appearance in the end of the manga.