Headscratchers / Katana ZERO

• Why/How would Leon send the letter?
  • Is it just to Kill Zero? Did the Mysterious man in the ending send it to Zero, hoping to turn him to his Cause?
    • It's more likely that after our mess on the freeway, Fifteen left us the note. It fits his MO of wanting all the creators of Chronos dead- he may have not been aware of our presence in the area until that point, but is also trying to keep a low profile.

• How come Zero can see what's in rooms he's never been in, yet can still get ambushed by Hidden bombs?
  • By All accounts, it just doesn't make sense.
    • V has access to Chronos, and to Snow, who is also apparently a Null. Possibly they counter-act Zero's future sight by setting up a random trap after Zero's done using foresight. After all, we never actually play as Zero- we play as Zero's precognition, Zero then has to do all the things we did in reality. Seemingly by waiting for the Zero to act physically before laying the trap, Zero believes everything's following his precognition, and thus walks right into the trap- that bomb actually wasn't there before. It's clearly some element of "scry vs scry" and how Zero's powers are affected by other Chronos users- in the first fight against Headhunter, from her perspective she shot us dead with her first shot- only to be surprised when we dodged it and hit her.

• What was the Chronos doing in safebox where a druggie DJ could bid for it?
  • Considering the corruption and ineptitude of the government as we see from our Handler, it's quite likely it literally was just an accident. They probably made a whole bunch of it for soldiers, and what was found was old war "rations" someone stored as army surplus. Someone didn't keep track of it after the messy postwar period, and the DJ found it- and probably told everyone about this cool "time drug" he took. Cue the agency sending Zero out to kill him.

• Where are all the children?
  • The revelation that there are no children in 3rd District is a stark reminder that New Mecca is a dystopia- but also begs the question why- and where the children are. When an inhabitant claims to not have seen children for 3 years, and police confidently state there are no children in an entire district, you wonder about the state of the world. Similarly, we are told the Therapist has a daughter- but he hasn't been able to reach her and fears for her safety- much akin to our "impossible" child's disappearance, but does it mean only wealthy districts are allowed to have children? And since there are men and women who live in that district, what happens when someone gets pregnant? Combined with the fact the only successful Chronos users have been children grown with the stuff, were all children drafted to be supersoldiers, and are they still being taken?
    • It's entirely possible that it's simply such a shithole, the only people regularly having hetero sex are prostitutes, and it's not much of a stretch to say they might get surgeries/drugs to altogether get rid of pregnancy.
    • If you want a more hopeful interpretation, perhaps families with children get funded by the community to move into a marginally less shitter district

• How does Mr. Kissyface bring back his axe a la Thor?
  • Magnets?
    • Looks too "Magical" to look like magnets. That axe just spirals back into his hand, complete with purple / pinkish trails.