She transforms her into something extreme.

Monika looks down at her slave smiling. "Such a beautiful new slave. Anyone would want a body like yours but... that's just by human standards isn't it? We're not limited by that here, not with a whole library of chips at my fingertips. The human body does have so many flaws, certainly you can be improved. You can speak, I want to know what you think.

Even though she can talk Samus only mewls as her head sags, not knowing what Monika may turn her into when anything is possible. She feels Monika insert a chip into her.