I don't know if this has been done before, but this is a guessing game. You must guess who the character you are describing is, and the person who guesses right can go next. here is mine,

He has silver hair, of curse is in the Final Fantasy series. Has an amusing theme song, and and evil character ((this is easy, so u should guess riggght))

Sephiroth ^^ , right? or-? I'm not good at these games xP.