Polypa is very professional and calculated, being very cautious of her actions and trying to not get caught during an assassination. She is shown to be quite adept at her job; knowing how to blend into the crowd right after getting the job done and not drawing too much attention to herself in order to escape notice of the authorities. 

She's slow to trust people and doesn't have any quadrants. Before her tragic accident, she could have been a lot more innocent and naive as supported by her relationship advice blog and her bad taste in books. After said incident, she's less inclined to open up to others and has little regard for both highbloods and lowbloods, outright refering to them as scum. She shows a softer side to herself, willingly telling the player about her accident and even letting them be her partner in crime.

Polypa has fast reflexes and carries a weapon with her at all times; the weapon she's revealed to use is a dagger of sorts. This is probably due to her line of work as a hired killer, and since she's not one to shy away from high-risk assassinations, she has to be a skilled fighter to get the job done.

She is also shown to be quite emotional at times, growing quite irate or sad (depends on which ending) after finding out about the death of her contact. But when the player shooshpaps her, however, she calms down soon enough. While she might become overwrought with feelings, she knows better than to let her emotions get the better of her as being overly emotional doesn't do her any favours as a hired killer.