I don't know of many games that make you the Dom in a hypno scenario but I feel like the gameplay would also be different to play into a power fantasy. Maybe more in line with like a management sim or something like Pokemon but with more mind control.
I'm just a sucker for alternative gamemodes, have you ever played the zodiac knights on the ps2? you know, that game that allowed you to be the silver knights and then the other mode where you played as the villain within the same context? I suppose I was kinda referring to that, an alternative mode of sorts that allows you to be the one causing the "Game over" to the protagonist, I just really digged Khazeem and the fact that being a big Hyena hunk literally draping your musky genitals over your victims is enough to break their minds was such a power move that I don't think I've ever experienced such a delight playing a porn game in like, ever.
At that point you are essentially switching the POV from Mezz to the villain and formalizing that switch with an alternative gamemode would be absolutely amazing, like unlocking secret content.