Batman - The many bad ends of Batman Beyond

The funny thing is that simping was not the main reason that he end up like that, he latter stopped simping for Inque and decided that his main focus was to have her powers which made Inque trick him. If he has keep simping for her, he probably would have obtain the inkpussy, there is even an scene where he asked for his reward and Inque inmedially undresses and says: “here?Now?”

Personally the intangible guy being pulled into the center of the earth is potentially the most horrifying one on the list.

Assuming he still has natural needs, he can expect maybe 3 days of being trapped in the molten core of the planet before dying.
If not, he may still be limited by his natural lifespan, which will add maybe 30-40 years to his suffering.
If even that isn't a factor, he's just in a different version of Kars's fate from JoJo, where mental collapse is the best outcome for him.