Firstly, you must have ten thunder books
then go to tonberry's restaurant and talk to the malboro until he asks you to use thunder books on him, do it ten times and it will morph to Ramuh, and gives you Ramuh feather.
To get Titan, go to the statue where Ben the Behemoth is, and talk to him, answer about the "Earthy Smell" then go back after you killed Glass Goth Z, and talk to him, the statue will break revealing Titan.
Submitted by Prasetia Gunawan (firstname.lastname@example.org)
To get the Gf sylph, go to the town,go to beach,open chest,get off beach. Do this 3 times and on the 3rd time when you open the chest Sylph is inside! She is very good and does lots of damage!
Submitted by Brian (email@example.com)