Gun Goddess writer here.
It was interesting writing her from the perspective of the comic, as well as that of a murder jetpack space rogue. I learned quite a few things, and learned to avoid others -- most prominently the almost daytime-TV-wine-mom level of flirtatiousness in her old VO script (we kept a few lines, of course. Dangerous eyes is iconic). The schmaltz is... it's a lot. It's a lot of schmaltz.
In the course of gathering feedback on many, many drafts of the GGMF/base scripts, we also found something peculiar. About half the Rioters who looked at MF saw her as much more roguish and violent, while the other half liked her much more on the flirtatious side. Lean to far into either category and the other half of players would divorce themselves from her fantasy, while if you tried to ride the middle neither side would be completely happy.
This was tested in player labs with very similar results. Early drafts of GGMF leaned into the flirty-dangerous persona, a more playful read I liked because it better represented the Lady Snowblood/Cowboy Bebop/BubbleGum Crisis vibe I was trying to hit for the Steel Valkyries thematic. The feedback?
Where is the violence? Where is the viciousness? We like her flirty, but where is that ruthless side?
So we went back to the drawing board and added a few more ruthless lines. The ones that worked best had a very distinct tonal shift -- she'd start at flirtatious, then shift her range into a darker, more threatening tone. The fantasy worked when she was always in control of the situation and knew it 100%, and that confidence was reflected in her dialogue -- whether she was flirting, fighting, or both. That changed the game, and I think it was reflected really well in our Gun Goddess performance. Jokes are also good.
Now, take this with a grain of salt because the version of MF I was working on lives in a crapsack galaxy full of space pirates, but I think she works best when the two distinct sides of her personality -- flirty and murdery --- are interwoven with a degree of self-confidence bordering on necessity. MF as a character needs that mountain of confidence because if she loses it, if she wavers even a little, she'll lose the aura of fear and respect around her and be killed in under an hour - she knows this, and plays everyone accordingly. That means her sexuality, her power, her decision making, her ruthlessness, her ability to deliberately drop a dude pleading for his life and dump him into the bay -- it all needs to be tied into this aura of extreme confidence, like she could never be wrong no matter what decision she's making, and no matter what mask she's wearing at the time. Like even though she's not forcing you to fall for her, her presence is so commanding that you could never say no.
For GGMF, this was basically her exosuit. "The sex is the suit," as one of the other writers put it. For base MF? I'd say it's almost like a suit of invincible armor, except it's just Sarah Fortune playing you.
My two cents.