Despite being the youngest of the slime sisters, MEDUSA also appears to be the most mature and practical. Calm and collected, she rarely lashes out and is shown to be extremely patient, demonstrated as how she tolerated much of SWEETHEART's complaints and how, according to her FOE FACTS entry, she is skilled at calming down her other two sisters whenever they argue. However, she does not like people with bad manners and feels they should be taught a lesson. She often addresses people as "doll".