kill 5.000 people in pvp for the "hand of mercy" title
get all jobs to 60
get all luminary tools
get all TT cards
get a rank 20 choco
earn 10.000.000 gil by doing leves for the "honest gillionaire" title
max a racing chocobo
catch all fish
farm 3.000 commendations for the pope chocobo

etc etc

there are countless things in this game which are endless time consuming and often reward you with several titles etc