this has a lot of space for a sequel by adding other stuff.
i think you could add the things robstarstellar said, i also think you could add some kind of poison dart for stuning a single victim, and some new enemies, by example a boyfriend/father that is inmune to all your weapons (smoke bombs, and poison darts) a little sister/brother that is vulnerable to poison but not smoke, and a dog that is vulnerable to smoke but not poison.
also you could add that once you strip the skirt of a girl, you get a second chance to get his shirt off, if you fail to get the shirt, she runs away and cant be molested again