Reminder to who wants to try this IRL: don't. There's the definite risk of rupturing your uterus into your stomach cavity.
So it should be a kinky SAW challenge, eh? Victim tied to this contraption. Has to pogo down a long hall slowly filling with acid or saw blades coming after, from behind, whilst as a bonus, attempting to avoid having an orgasm that would somehow be detected by the pogo stick triggering an explosive charge in the dildo. Hey, don't blame me. It's all these confound Japanese Rape-Sex-Death indie games popping all over the place that I involuntarily see nearly constantly, now that game creating is literally done by free applications.