ray (mighty no. 9)
A downloadable character of Mighty No. 9, and a spiritual analogue to Proto Man (backstory and origins) and Zero (gameplay and character concepts). She was originally planed for a boss battle, however, thanks to the partnership with Deep Silver, she also became a playable character with her own story.
RAY is a mysterious robot who somehow posses similar Xel-manipuating abilities to Beck as she can also assimilate Xels from other robots, however, her physical body is constantly deteriorating from Xel depravation and her sanity gradually slipping. Unlike Beck, she is a melee-oriented character à la Zero, as she fights enemies using her claws that can perform a 3-attack combo with a powerful finishing attack and a spinning tackle that allows her to charge into enemies. She can also gain "Variation Codes" from the Mighty Numbers where her arm mutates into a different weapon.
Throughout her DLC campaign, it is revealed that her real name was Raychel, and likely to be "Mighty No. 0" as she was created by Professor William White at an attempt of making a freely-evolving robot that can assimilate and manipulate Xels. Her body deteriorating is due to the faulty programming of her Xel Core.
She also makes another appearance in Mighty Gunvolt Burst as a DLC character as well along with Copen from Azure Striker Gunvolt and Kurona from Gal☆Gun.