A theory involving Izumi, and the motorcycle. . .
I searched a few different key words, and didn't find anything similar to this, so I thought it may warrent a new topic. . .
Anyways, I was talking with my cousin about GANTZ the other day, speculating about the new weapon etc. when I realized something. Doesn't it seem strange that no one notices the motorcycle until Izumi is back in GANTZ? Is it possible that he requested a special weapon on his first time in GANTZ, and it happened to be the bike? Obviously, he will get something different this time, but it does seem very strange to me that no one EVER notices the room or the bike until Izumi gets there. For that matter, it seems like nishi never knew about it either. . .which would be logical if it only exhisted when Izumi was playing GANTZ. Obviously I can only speculate that, but it seems like he would have used it if he knew about it.