Shadow Ninja: Milk Night

You're a ninja breaking into the Night Sakura Castle, and the guards on patrol are only half the problem. The other half is your own body, which is doing everything it can to get you caught.

The job is simple on paper: get in, get through, don't get seen. Getting seen is bad. Finishing is worse. Slip up once and the game stops being a stealth mission and turns into an extended punishment session your character doesn't get to walk away from clean.

You spend your time reading patrol routes and deciding how much risk is worth the payout, since flashing yourself in the open apparently pays better than staying careful. Every route through the castle is really a bet against your own arousal meter. It also supports controller vibration, which tells you exactly what kind of feedback loop the game is going for.