Red Rabbit [Rebecca "Rabbit" Red]: interdimensional biopunk cyborg

Rebecca is larger on the inside than she is on the outside. Hence, she can retract some of her tentacles before choosing about where they'll erupt from her body.

[truthfully?? why couldn't she simply have acne?!]

Oh. And her "costume" is related to her tentacles. (They're a package deal.)

She's quite fast, very durable, heals rapidly, has acute senses.