A villain's entrance is the first appearance of said villain in a situation where the heroes realize said is a villain thus Sephiroth in the flashback is his entrance because Cloud realizes he is a villain (despite the fact that his memories are somewhat obscured).
I could swear the poll mentioned Ultimecia's entrance as being in possession of Edea (but I think otherwise personally).








Her's is a close second.
"I hate Bambi. Because of that stupid movie, the Cowards has been crying since last week! I'm going to kill him to shut him up if he keeps on with it."



