Zero is you from 45 years in the future, the entire game takes place on the moon, but you don't notice because your perception of time is slowed down by the disease that killed off most of humanity, and you have the ability to jump between timelines, and you're going to use this ability to go back in time and save the entire world from 45 years ago.
Did you play Zero Time Dilemma?
Cause that twist sucked imo (ZTD's twist).
I did, and it was bad. However, I definitely liked the game overall. ---