Cynthia is the Drill Instructor from Metal Slug 7 / Metal Slug XX . She is a very typical tsundere, and inevitably falls in love with the player as he/she succeeds in the missions with high marks.
After you complete the final mission with an "S" mark, you will have the choice to marry her or become her drill instructor, either way, it will say "Mission Complete!".
- During her dialogues, it is hinted that she is actually the little sister of Sophia. Not only both are from Minnesota, but she also says that her sister likes fishing.
- In Metal Slug Defense, her hair is a bit darker in tone.
Cynthia going through all her expressions in Metal Slug 7
Cynthia in Metal Slug Defense
Cynthia in Metal Slug XX Online