No, its only in your mind(and games, of course)
no not yet...
They were not yet invented- did not exist.
They were not important- they did not exist yet.
no
guns guns guns
Aliens are not yet known and proven to even exist; speculating on what tech they may have is premature.
Lots of guns still exist. That is a pretty vague question.
The only gun there is on portal 2 is the portal gun which creates the portals. You shoot a portal on white surface, and shoot another portal on a white surface, and you can move yourself and objects through these portals.
They don't make it(yet).
Yes. Very yes. Portal was released as part of the Orange Box in 2007 and on steam. Portal 2 was released earlier in 2011.
blue light and white metal and black strips of meatl
They already do.