There are confusing points here in Gantz which leaves me really clueless...
• Can't kill someone if they're all inside Gantz' room
Remember the early part of the story? Where a random guy pulled the trigger of a gun at Joichiro Nishi (the middleschooler)? Nishi did'nt explode to bits due to his black suit then he killed the random guy who pulled the trigger (he does'nt wear the suit).
Another part of that is where the 2 vampires invaded Gantz' room... they we're fighting inside the room. Sakata and Sakurai (2 psychics) lifted the female vamp and crushed her cerebral arteries (or something) but nothing happened, also, the male vamp slashed Sakurai that's why the female vamp fell down but Sakurai was left unharmed.
It is mentioned that, as long as you're inside the room, nothing can be done.
In that part, the female vamp is'nt wearing a suit (just like what happened in Nishi's timeline at that time) but her brain did'nt got damaged. Pretty quite confusing eh?
The very very first part of the story where Kato and Kurono died... They were asked if they still remember talking to someone before they died... Kurono remembered talking to an old lady at the substation... This plot is still left open.
So yeah... There goes my questions. I may have missed-out something in the story so you guys might know what or why is that.