who did and why

Try searching for the topic, \"Who created Zero anyway?\" You\'ll find pages upon pages of who, how, and why.

can they prove it

Only the who, and almost the why.

then who made the other zero

Which other Zero?

The Zero you play as is the true Zero, the one in Zero\'s body, Omega, hasn\'t been confirmed. Either he is the virus, or Weil\'s creation.

the one u paly as

Ok.. pay attention.. there is already a topic in this section that discusses this exact thing in great detail... Due to spoiler alerts, I urge you to go there, instead, instead of continuing this thread.

He is the exact same one as the X series one. In another body. BTW, the body only looks different due to art styles. Storylinewise, it looks the same as X series.