Sephiroth, Knowing about the keyblade's existence?

[♫]

Normally it would be bad, but technically in KH, Sephiroth isn't a bad guy per se

I consider killing the main hero(Sora) and trying to steal the light from someone(Cloud) to be an act of supreme evil, thus a "Bad Guy"

 

[Azrael]

I consider killing the main hero(Sora) and trying to steal the light from someone(Cloud) to be an act of supreme evil, thus a "Bad Guy"

Its optional whether to fight him or not in both games and does Sephiroth want Kingdom Hearts like Xehanort? No, so he's neither good or bad.

 

[♫]

Its optional whether to fight him or not in both games and does Sephiroth want Kingdom Hearts like Xehanort? No, so he's neither good or bad.

Is it Optional that Sephiroth wants to lure Cloud into darkness and steal his light? No.

 

[madammina]

He was imprisoned in a portal in the first game. (I have no clue how he got there, but he was there)