Here is the full list of all 50 Naruto Shippuden: Ultimate Ninja Storm 2 trophies - there are 42 bronze, 4 silver, 3 gold and 1 platinum.
You've acquired all trophies.
You've acquired all titles.
You've won 10 times in online Ranked Match battles.
You've cleared all events.
You've seen friendship events for everyone.
You've cleared all correspondence events.
You've acquired all Ninja Info Cards.
You've cleared all requests.
You've acquired all battle items.
Your total play time is over 30 hours.
You've collected all collection items.
Collected 100% of the stories.
You've retrieved all Tonton's pearls.
You've cleared the 10 trials.
You've retrieved all cursed dolls.
Saved up 999999 Ryo.
You've cleared Fragment.
You've seen all memories.
You've saved up 999999 Storm Points.
You've seen all secret factors.
You've collected all messenger birds.
You can now use all characters.
You've cleared Final Chapter.
You've acquired S Rank in "Earth Shatter".
You've cleared Chapter Six.
You've acquired S Rank in "Battle Between the Sage God".
You've cleared Chapter Five.
You've acquired S Rank in "The Two Uchiha".
You've cleared Chapter Four.
You've picked up 500 items.
You've cleared Chapter Three.
You've gained 50 titles.
You've acquired S Rank in "Sturm und Drang".
You can now use Lars.
You can now use all members of the Akatsuki.
You can now use Jiraiya, Tsunade and Orochimaru.
You can now use Sasuke, Suigetsu, Karin and Jugo.
You've cleared Chapter Two.
You've acquired S Rank in "Showdown Between Best Friends".
You've acquired S Rank in "Forbidden Fury".
You can now use members of Naruto's generation.
You've cleared Chapter One.
You can now use Kakashi, Yamato, Guy and Asuma.
You've acquired S Rank in "Sakura Dances".
You've won 1 time in online Ranked Match battles.
You can now use Gaara, Kankuro, Temari and Chiyo.
You've acquired S Rank in "Sand and Art Blast".
Edited a Ninja Info Card.
You've cleared the Prologue.
You've acquired S Rank in "The Bell-Stealing Drill".