Obsessed and Possesed are two different people. Both are girls, who's age I prefer not to disclose.
Obsessed is very literally obsessed with Final Fantasy games, her favourite being ff7. Obsessed like ff6, ff7, ff8, ff9 and wants ff10 soon.
Possesed can become possesed by weird ppl. Who knows what her personality is REALLY like. She calls the evilness that takes over Bob, for reasons unknown to us all. She likes Hey Arnold and Invader Zim...quite different from Obsessed.